TORU ISHIGAMI

Last Updated :2025/07/07

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Associate Professor
Web Site
https://powder.hiroshima-u.ac.jp/
E-mail
ishigamihiroshima-u.ac.jp
Self-introduction
We use state-of-the-art computer simulation and machine learning to predict, analyze, and optimize the dynamics, physical properties, and process performance of various dispersion systems (colloidal suspensions, emulsions, aerosols, capillary suspensions, etc.). Keywords: Computational Fluid Dynamics; Direct numerical simulation; Granular flow; Free-interfacial flow; Three-phase flow; Four-phase flow; DEM; Immersed boundary method; Level set method; VOF; CLSVOF; Phase-field model; Complex geometry; Contact angle modeling; Arbitrary-shaped wall boundary model; Machine learning; Deep learning

Basic Information

Major Professional Backgrounds

  • 2004/04/01, Kawasaki Thermal Engineering Co.,Ltd., employee
  • 2010/06/01, Graduate School of Engineering, Kobe University, Assistant Professor
  • 2014/04/01, College of Bioresource Sciences, Nihon University, Assistant Professor
  • 2017/04/01, 2020/03/31, Graduate School of Engineering, Hiroshima University, Associate Professor

Educational Backgrounds

  • Kobe University, Faculty of Engineering, Department of Chemical Science and Engineering, 1998/04, 2002/03
  • Kobe University, Graduate School of Science and Technology, Department of Chemical Science and Engineering, 2002/04, 2004/03
  • Kobe University, Graduate School of Engineering, Department of Chemical Science and Engineering, 2008/04, 2010/03

Academic Degrees

  • Kobe University
  • Kobe University

Affiliated Academic Societies

  • The Society of Chemical Engineers, Japan
  • The Japanese Society for Multiphase Flow
  • The Society of Powder Technology, Japan
  • The Association of Powder Process Industry and Engineering, JAPAN

Educational Activity

Course in Charge

  1. 2025, Liberal Arts Education Program1, 1Term, Introductory Seminar for First-Year Students
  2. 2025, Undergraduate Education, 1Term, Basic Engineering Computer Programming
  3. 2025, Undergraduate Education, Second Semester, Basic Experiments in Chemistry
  4. 2025, Undergraduate Education, 2Term, Introduction to Fundamental Industry
  5. 2025, Undergraduate Education, 1Term, Numerical Calculation Method
  6. 2025, Undergraduate Education, Year, Graduation Thesis
  7. 2025, Graduate Education (Master's Program) , 3Term, Special Exercises on Chemical Engineering B
  8. 2025, Graduate Education (Master's Program) , 4Term, Special Exercises on Chemical Engineering B
  9. 2025, Graduate Education (Master's Program) , Year, Special Study on Chemical Engineering
  10. 2025, Graduate Education (Master's Program) , 3Term, Complex Fluid Dynamics
  11. 2025, Graduate Education (Doctoral Program) , Year, Special Study on Chemical Engineering

Research Activities

Academic Papers

  1. Investigation on the Collection Mechanism of van der Waals Force in Air Filtration by Numerical Simulation and Empirical Model Development, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 63(23), 10410-10426, 20240528
    Link to Paper Search Results by DOI
  2. Assessing the formation and destruction behaviors of fine powder agglomerates in vibrating fluidized beds using the Ergun equation, POWDER TECHNOLOGY, 428, 20231001
    Link to Paper Search Results by DOI
  3. ★, Performance analysis and optimization of sweep gas membrane distillation module using high-resolution computational model and machine learning, CHEMICAL ENGINEERING JOURNAL, 473, 20231001
    Link to Paper Search Results by DOI
  4. Hierarchical porous zeolite synthesis from coal fly ash via microwave heating, COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 661, 20230320
    Link to Paper Search Results by DOI
  5. An experimental study on recovering and concentrating ammonia by sweep gas membrane distillation, PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, 171, 555-560, 202303
    Link to Paper Search Results by DOI
  6. ★, Prediction of submicron particle dynamics in fibrous filter using deep convolutional neural networks, PHYSICS OF FLUIDS, 34(12), 202212
    Link to Paper Search Results by DOI
  7. ★, Numerical simulation of aerosol permeation through microstructure of face masks coordinating with x-ray computed tomography images, AIP ADVANCES, 12(12), 20221201
    Link to Paper Search Results by DOI
  8. Performance characterization of a novel compact dust collector with pleated filter cartridges, SEPARATION AND PURIFICATION TECHNOLOGY, 305, 20230115
    Link to Paper Search Results by DOI
  9. ★, Application of deep learning neural networks for the analysis of fluid-particle dynamics in fibrous filters, CHEMICAL ENGINEERING JOURNAL, 455, 20230101
    Link to Paper Search Results by DOI
  10. ★, Numerical modeling for particulate flow through realistic microporous structure of microfiltration membrane: Direct numerical simulation coordinated with focused ion beam scanning electron microscopy, POWDER TECHNOLOGY, 410, 202209
    Link to Paper Search Results by DOI
  11. ★, CFD Model Development and Experimental Measurements forAmmonia-Water Separation Using a Vacuum Membrane DistillationModule, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 61(21), 7381-7396, 20220601
    Link to Paper Search Results by DOI
  12. Influence of pulse-jet cleaning pressure on performance of compact dust collector with pleated filter operated in clean-on-time mode, ADVANCED POWDER TECHNOLOGY, 33(8), 20220611
    Link to Paper Search Results by DOI
  13. ★, Effect of liquid volume fraction and shear rate on rheological properties and microstructure formation in ternary particle/oil/water dispersion systems under shear flow: two-dimensional direct numerical simulation, SOFT MATTER, 18(22), 4338-4350, 20220608
    Link to Paper Search Results by DOI
  14. Numerical Simulation of Granular and Multiphase flows through Porous Media Obtained by Image Analysis, Journal of the Society of Powder Technology, Japan, 59, 167-177, 20220410
  15. ★, High-Resolution Numerical Simulation of Microfiltration of Oil-in-Water Emulsion Permeating through a Realistic Membrane Microporous Structure Generated by Focused Ion Beam Scanning Electron Microscopy Images, LANGMUIR, 38(6), 2094-2108, 20220215
    Link to Paper Search Results by DOI
  16. Influence of pulse-jet cleaning interval on performance of compact dust collector with pleated filter, SEPARATION AND PURIFICATION TECHNOLOGY, 279, 20211215
    Link to Paper Search Results by DOI
  17. Synthesis of NiCuZn ferrite nanoparticles from metallic nitrate solutions using the microwave direct denitration method and evaluation of its properties, PARTICULATE SCIENCE AND TECHNOLOGY, 39(4), 427-435, 20210519
    Link to Paper Search Results by DOI
  18. ★, Effect of Surface Wettability on Droplet Coalescence and Pressure Drop in a Fibrous Filter: Direct Numerical Simulation Coordinated with X-ray Computed Tomography Images, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 60(10), 4168-4179, 20210317
    Link to Paper Search Results by DOI
  19. ★, Phase-Field Simulation of the Coalescence of Droplets Permeating through a Fibrous Filter Obtained from X-ray Computed Tomography Images: Effect of the Filter Microstructure, LANGMUIR, 36(17), 4711-4720, 20200505
    Link to Paper Search Results by DOI
  20. Micro-transfer patterning of dense nanoparticle layers: roles of rheology, adhesion and fracture in transfer dynamics, SOFT MATTER, 16(13), 3276-3284, 20200407
    Link to Paper Search Results by DOI
  21. Microwave direct denitration for synthesis of Cu-Ce-Zr-O composite oxide and its characterization, POWDER TECHNOLOGY, 362, 26-31, 20200215
    Link to Paper Search Results by DOI
  22. Electrophoretic classification based on differences in electrophoretic mobility caused by change in the applied electric field, POWDER TECHNOLOGY, 362, 586-590, 20200215
    Link to Paper Search Results by DOI
  23. Mechanisms of Adhesive Micropatterning of Functional Colloid Thin Layers, ACS APPLIED MATERIALS & INTERFACES, 11(43), 40602-40612, 20191030
    Link to Paper Search Results by DOI
  24. Synthesis of potassium-type zeolites by the reverse-micelle method with microwave heating, COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 555, 532-538, 20181020
    Link to Paper Search Results by DOI
  25. Effects of Surface Finish of Nonwoven Fabric Bag Filters on Filter Efficiency, CHEMICAL ENGINEERING & TECHNOLOGY, 45(1), 92-99, 20211102
    Link to Paper Search Results by DOI
  26. Effects of NO2 gas concentration on the degradation of polyphenylene sulfide non-woven bag filter at high temperature, ADVANCED POWDER TECHNOLOGY, 32(9), 3278-3287, 20210731
    Link to Paper Search Results by DOI
  27. Effect of ion species on change in particle electrophoresis caused by change in applied electric field, COLLOID AND INTERFACE SCIENCE COMMUNICATIONS, 43, 20210716
    Link to Paper Search Results by DOI
  28. ★, Direct numerical simulation of permeation of particles through a realistic fibrous filter obtained from X-ray computed tomography images utilizing signed distance function, POWDER TECHNOLOGY, 385, 131-143, 20210601
    Link to Paper Search Results by DOI
  29. Synthesis of zeolites with hierarchical porous structures using a microwave heating method, COLLOID AND INTERFACE SCIENCE COMMUNICATIONS, 42, 20210501
    Link to Paper Search Results by DOI
  30. Distributions of Fiber Mass, Air Permeability, and Filter Efficiency in Nonwoven Fabric Bag Filters, CHEMICAL ENGINEERING & TECHNOLOGY, 44(3), 535-541, 20210301
    Link to Paper Search Results by DOI
  31. Utilization of woody biomass combustion fly ash as a filler in the glue used for plywood production, ADVANCED POWDER TECHNOLOGY, 31(11), 4482-4490, 202011
    Link to Paper Search Results by DOI
  32. Numerical Simulation of Emulsion Permeating through Fibrous Filter in Coalescer, Japanese Journal of Multiphase Flow, 34(2), 310-317, 202006
  33. ★, Direct numerical simulation and experimental validation of flow resistivity of nonwoven fabric filter, AICHE JOURNAL, 66(2), 202002
    Link to Paper Search Results by DOI
  34. A continuous-flow exposure method to determine degradation of polyphenylene sulfide non-woven bag-filter media by NO2 gas at high temperature, ADVANCED POWDER TECHNOLOGY, 30(12), 2881-2889, 201912
    Link to Paper Search Results by DOI
  35. ★, Semiphenomenological model to predict hardening of solid-liquid-liquid systems by liquid bridges, GRANULAR MATTER, 21(4), 201911
    Link to Paper Search Results by DOI
  36. Existence Form of Potassium Components in Woody Biomass Combustion Ashes and Estimation Method of Its Enrichment Degree, ENERGY & FUELS, 32(1), 517-524, 201801
    Link to Paper Search Results by DOI
  37. Simulation of Permeation of Colloidal Particle Dispersion through Membrane Pores in Microfiltration, J. Soc. Powder Technol., Japan, 54, 362-369, 2017
  38. Permeation of oil-in-water emulsions through coalescing filter: two-dimensional simulation based on phase-field model, AIChE J., 62, 2525-2532, 2016
  39. Numerical simulation of coalescence phenomena of oil-in-water emulsions permeating through straight membrane pore., Colloids Surf. A, 491, 70-77, 2016
  40. Preparation and characterization of antifouling poly(vinyl chloride-co-poly(ethylene glycol)methyl ether methacrylate) membranes, J. Membr. Sci., 498, 414-422, 2016
  41. The Effect of Membrane Material and Surface Pore Size on the Fouling Properties of Submerged Membranes, Water, 8(12), 602, 2016
  42. Multiscale simulation method for flow and mass transfer characteristics in a reverse osmosis membrane module., Ind. Eng. Chem. Res., 54, 11413-11419, 2015
  43. Host manipulation by an ichneumonid spider-ectoparasitoid that takes advantage of preprogrammed web-building behaviours for its cocoon protection, J. Exp. Biol., 218, 2326-2332, 2015
  44. Numerical Simulation of Membrane Permeation of Oil-in-Water Emulsions containing Surfactants, MEMBRANE, 40, 155-160, 2015
  45. Three-dimensional phase-field simulations of membrane porous structure formation by thermally induced phase separation in polymer solutions, J. Membr. Sci., 483, 104-111, 2015
  46. Numerical modeling of concentration polarization in spacer-filled channel with permeation across reverse osmosis membrane, Ind. Eng. Chem. Res., 54, 1665-1674, 2015
  47. Effect of membrane polymeric materials on relationship between surface pore size and membrane fouling in membrane bioreactors, Appl. Surf. Sci., 330, 351-357, 2015
  48. Preparation of hydrophilic vinyl chloride copolymer hollow fiber membranes with antifouling properties, Appl. Surf. Sci., 324, 718-724, 2015
  49. Preparation of a PVDF hollow fiber blend membrane via thermally induced phase separation (TIPS) method using new synthesized zwitterionic copolymer, Desalin. Water Treat., 54, 2911-2919, 2015
  50. Effect of solidification rate of polymer solution on the die-swell during hollow fiber spinning by non-solvent induced phase separation, J. Membr. Sci., 472, 194-201, 2014
  51. Permeation of concentrated oil-in-water emulsions through a membrane pore: Numerical simulation using a coupled level set and the volume-of-fluid method, Soft Matter, 10, 7985-7992, 2014
  52. Coordinated Numerical Simulation of Porous Membrane Formation by the Phase Field Method and Particulate-Laden Flow, Kagaku Kogaku Ronbunshu, 40, 20-233, 2014
  53. Improvement of antifouling properties of polyvinylidene fluoride hollow fiber membranes by simple dip coating of phosphorylcholine copolymer via hydrophobic interactions, Ind. Eng. Chem. Res., 53(2491), 2497, 2014
  54. Solidification behavior of polymer solution during membrane preparation by thermally induced phase separation, Membranes, 4, 113-122, 2014
  55. Size and composition analyses of colloids in deep granitic groundwater using microfiltration/ultrafiltration while maintaining in situ hydrochemical conditions, Colloids Surf. A, 461, 279-286, 2014
  56. Preparation of poly (vinyl chloride) blend hollow fiber membranes with improved antifouling properties, MEMBRANE, 39, 168-172, 2014
  57. Permeation of dispersed particles through a pore and transmembrane pressure behavior in dead-end constant-flux microfiltration by two-dimensional direct numerical simulation, Ind. Eng. Chem. Res., 52(4650), 4659, 2013
  58. Solidification characteristics of polymer solution during polyvinylidene fluoride membrane preparation by nonsolvent-induced phase separation, J. Membr. Sci., 438, 77-82, 2013
  59. Direct visualization of fouling inside a hollow fiber ultrafiltration membrane caused by sodium alginate, Ind. Eng. Chem. Res., 52, 16375-16383, 2013
  60. Flow and heat transfer characteristics of ammonium alum hydrate slurries, Int. J. Refrigeration, 36, 81-87, 2013
  61. Fouling reduction of reverse osmosis membrane by surface modification via layer-by-layer assembly, Sep. Purif. Technol., 99, 1-7, 2012
  62. Effect of water in amino acid ionic liquids on CO2 permeability of amino acid ionic liquid-based facilitated transport membranes, J. Membr. Sci., 415, 168-175, 2012
  63. Amino acid ionic liquid-based facilitated transport membranes for CO2 separation, Chem. Commun., 48, 6903-6905, 2012
  64. Flow and heat transfer characteristics of ammonium alum hydrate slurry treated with surfactants, J. Chem. Eng. Jpn, 45, 136-141, 2012
  65. Effect of kinds of membrane materials on membrane fouling with BSA, J. Membr. Sci., 384, 157-165, 2011
  66. Effects of three natural organic matter types on cellulose acetate butyrate microfiltration membrane fouling., J. Membr. Sci., 379, 233-238, 2011
  67. Numerical study on non absorbable gas control using an immersed plate and an extraction in the evaporator/absorber in an absorption chiller, J. Chem. Eng. Jpn, 43, 561-568, 2010
  68. Effect of the flow rate of water dropping onto the evaporator in an absorption chiller, Memoirs of the Graduate School of Engineering, Kobe University, 1, 42-47, 2010
  69. Development of a Liquid Film Model for the Evaporator in an Absorption Chiller, Kagaku Kogaku Ronbunshu, 35(5), 417-424, 2009

Invited Lecture, Oral Presentation, Poster Presentation

  1. Microstructure Optimization for the Face Mask Performance by CFD-DPM Model, Ika Yuni Rachmawati, Kodai Hada, Mohammadreza Shirzadi, Tomonori Fukasawa, Kunihiro Fukui, Toru Ishigami, 7th International Conference on the Characterization and Control of Interfaces for High Quality Advanced Materials (ICCCI2022), 2022/11/16, Without Invitation, English
  2. Development of a numerical simulation model for solid-gas-liquid-liquid four-phase flow, Toru Ishigami, Ayumu NIshii, Tomonori Fukasawa, Kunihiro Fukui, The 11th International Conference on Multiphase Flow (ICMF2023), 2023/04/05, Without Invitation, English
  3. Numerical analysis of aerosol capturing behavior in face masks obtained by X-ray CT, Kodai Hada, Shirzadi Mohammadreza, Tomonori Fukasawa, Kunihiro Fukui, Toru Ishigami, The 11th International Conference on Multiphase Flow (ICMF2023), 2023/04/03, Without Invitation, English
  4. Direct Numerical Simulation of Granular and Multiphase Flows through Filter Microstructures Obtained by Image Analysis, Toru Ishigami, 7th International Conference on the Characterization and Control of Interfaces for High Quality Advanced Materials (ICCCI2022), 2022/11/16, With Invitation, English
  5. High-resolution numerical simulation of particulate flow permeating through fibrous filter obtained from X-ray CT images, Toru Ishigami, Mohammad Irwan Fatkhur Rozy, Yuto Maemoto, Masaki Ueda, Tomonori Fukasawa, Kunihiro Fukui, Mikio Sakai, Yasushi Mino, Kuniaki Goth, 4th International Symposium on Multiscale Multiphase Process Engineering (MMPE2022), 2022/09/27, Without Invitation, English
  6. High-Resolution Numerical Simulation of Multiphase and Granular Flows through Microfiltration Membrane Obtained from FIB-SEM, Toru Ishigami, University of Bremen, Guest seminar, 2022/05/30, With Invitation, English
  7. Pore-Scale Direct Numerical Simulation of Particulate Flow Permeating through Fibrous Filter Obtained from X-ray CT, Toru Ishigami, Mohammad Irwan Fatkhur Rozy, Yuto Maemoto, Masaki Ueda, Tomonori Fukasawa, Kunihiro Fukui, Mikio Sakai, Yasushi Mino, Kuniaki Gotoh, The 3rd International Symposium for Computational Particle Technology, 2021/11/18, Without Invitation, Japanese
  8. Permeation of particles through microfiltration membrane: direct numerical simulation coordinated with FIB-SEM, Kenta Kawashima, Mohammad Irwan Fatkhul Rozy, Masaki Ueda, Tomonori Fukasawa, Toru Ishigami, Kunihiro Fukui, Toshinori Tsuru, The 8th Asian Particle Technology Symposium (APT2021), 2021/10/13, Without Invitation, Japanese
  9. Direct numerical simulation of granular and mautiphase flows for chemical engineering processes, Toru Ishigami, NEPTIS-28 (28th Nisshin Engineering Particle Technology International Seminar), 2019/12/10, With Invitation, English
  10. Effect of the temperature on the degradation of polyphenylene sulfide non-woven bag-filter media by NO2 gas with a continuous-flow exposure method, K. Fukui, K. Ito, M. I. F. Rozy, T. Fukasawa, T. Ishigami, FILTECH2019, 2019/10/23, Without Invitation, English
  11. High-resolution printing of semidried nanoparticle thin films, Yasuyuki KUSAKA, Tomonori FUKASAWA, Toru ISHIGAMI, Nobuko FUKUDA, APCChE 2019, 2019/09/26, Without Invitation, English
  12. Direct numerical simulation of flow resistivity and oil droplet coalescence on x-ray ct images of nonwoven fabrics filters, Mohammad Irwan Fatkhur ROZY, Masaki UEDA, Tomonori FUKASAWA, Toru ISHIGAMI, Kunihiro FUKUI, APCChE 2019, 2019/09/26, Without Invitation, English
  13. Electrophoretic classification based on differences in electrophoretic mobility caused by change in the applied electric field, Kosei ONO, Tomonori FUKASAWA, Toru ISHIGAMI, Kunihiro FUKUI, APCChE 2019, 2019/09/25, Without Invitation, Japanese
  14. Evaluation of agglomeration and disruption for fine powder in vibrating fluidized bed, Tomonori FUKASAWA, Akihiro YAMANE, Toru ISHIGAMI, Kunihiro FUKUI, APCChE 2019, 2019/09/25, Without Invitation, Japanese
  15. Permeation of Gas through Filter Media: Three Dimensional CFD Simulation with Immersed Boundary Method, Mohammad Irwan Fatkhur Rozy, Toru Ishigami, Tomonori Fukasawa, Kunihiro Fukui, 2018/09/03, Without Invitation, English
  16. Synthesis of Cu-Ce-Zr oxide catalyst nanoparticle by microwave denitration method, A.D. Karisma, R. Nakamura, T. Fukasawa, T. Ishigami, K. Fukui, The 6th International Conference on the Characterization and Control of Interfaces for High Quality Advanced Materials and the 54th Summer Symposium on Powder Technology (ICCCI2018), 2018/07/11, Without Invitation, English
  17. Synthesis of potassium-type zeolite by reverse-micelle microwave method, T. Fukasawa, A. Horigome, A.D. Karisma, T. Ishigami, K. Fukui, The 6th International Conference on the Characterization and Control of Interfaces for High Quality Advanced Materials and the 54th Summer Symposium on Powder Technology (ICCCI2018), 2018/07/11, Without Invitation, English
  18. Analysis of gelation characteristics of concentrated suspension by capillary force, T. Ishigami, K. Anzai, C. Tokishige, T. Fukasawa, K. Fukui, S. Kihara, The 6th International Conference on the Characterization and Control of Interfaces for High Quality Advanced Materials and the 54th Summer Symposium on Powder Technology (ICCCI2018), 2018/07/10, Without Invitation, English
  19. Development of the Performance Test Method for the Plug-in Type Pulse Jet Dust Collector, Kunihiro Fukui, Shogo Fujiwara, Mohammad Irwan Fatkhur Rozy, Tomonori Fukasawa, Toru Ishigami, Hisashi Kudou, Chikao Kanaoka, FILTECH2018, 2018/03/14, Without Invitation, English
  20. Rheological Characterization of Capillary Suspension Involved with Particle Wettability, Toru Ishigami, Kouta Nakamura, Third International Symposium on Multiscale Multiprocess Engineering (MMPE2017), 2017/05/09, Without Invitation, English, Toyama, Japan

External Funds

Acceptance Results of Competitive Funds

  1. Grant-in-Aid for Scientific Research (C), 2022/04/01, 2025/03/31
  2. 2022/04/01, 2023/03/31
  3. 2020, 2022
  4. 2019, 2022
  5. 2019, 2020
  6. 2019, 2022
  7. 2019, 2020
  8. 2019, 2020
  9. 2018, 2019
  10. 2017, 2018
  11. 2017, 2017
  12. 2017, 2018
  13. 2016, 2016
  14. 2015, 2015
  15. 2015, 2017
  16. 2015, 2016
  17. 2014, 2015
  18. 2012, 2014
  19. 2012, 2013

Social Activities

History as Committee Members

  1. Vice Coordinator, 2020/04, Technical Group of Computational Granular Simulation in The Association of Powder Process Industry and Engineering， JAPAN，