Optimization of cold gas dynamic spray processes by computational simulation

Hidemasa Takana; Tetsuo Shoji; Kazuhiro Ogawa; Hideya Nishiyama

doi:10.1115/FEDSM2007-37081

Optimization of cold gas dynamic spray processes by computational simulation

Hidemasa Takana, Tetsuo Shoji, Kazuhiro Ogawa, Hideya Nishiyama

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

An integrated model of compressible thermofluid, splat formation and coating formation for a cold dynamic spray process has been established. In-flight behavior of nano-micro particles and the interaction between the shock wave and the particles in a supersonic jet flow impinging onto the substrate and further particle acceleration with electrostatic force are clarified in detail by considering viscous drag force, flow acceleration, added mass, gravity, Basset history force, Saffman lift force, Brownian motion, thermophores is and electrostatic force. The effect of electrostatic acceleration becomes more significant with the decrease in particle diameter even in the presence of unavoidable shock wave. As a result, electrostatic acceleration can broaden the application range of operating particle diameter in a cold gas dynamic spray process to form a robust and activated coating. Finally, based on the integrated model, the coating thickness characteristics in an electrostatic assisted cold dynamic spray process are evaluated.

Original language	English
Title of host publication	2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
Pages	1569-1577
Number of pages	9
Edition	PART B
DOIs	https://doi.org/10.1115/FEDSM2007-37081
Publication status	Published - 2007 Dec 1
Event	2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 - San Diego, CA, United States Duration: 2007 Jul 30 → 2007 Aug 2

Publication series

Name	2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
Number	PART B
Volume	1 SYMPOSIA

Other

Other	2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
Country	United States
City	San Diego, CA
Period	07/7/30 → 07/8/2

Keywords

Cold gas dynamic spray
Computational simulation
Nano-micro particle
Shock wave
Substrate interactions
Supersonic jet

ASJC Scopus subject areas

Mechanical Engineering
Condensed Matter Physics

Access to Document

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Takana, H., Shoji, T., Ogawa, K., & Nishiyama, H. (2007). Optimization of cold gas dynamic spray processes by computational simulation. In 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 (PART B ed., pp. 1569-1577). (2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007; Vol. 1 SYMPOSIA, No. PART B). https://doi.org/10.1115/FEDSM2007-37081

Optimization of cold gas dynamic spray processes by computational simulation. / Takana, Hidemasa; Shoji, Tetsuo; Ogawa, Kazuhiro; Nishiyama, Hideya.

2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007. PART B. ed. 2007. p. 1569-1577 (2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007; Vol. 1 SYMPOSIA, No. PART B).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Takana, H, Shoji, T, Ogawa, K & Nishiyama, H 2007, Optimization of cold gas dynamic spray processes by computational simulation. in 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007. PART B edn, 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007, no. PART B, vol. 1 SYMPOSIA, pp. 1569-1577, 2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007, San Diego, CA, United States, 07/7/30. https://doi.org/10.1115/FEDSM2007-37081

Takana H, Shoji T, Ogawa K, Nishiyama H. Optimization of cold gas dynamic spray processes by computational simulation. In 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007. PART B ed. 2007. p. 1569-1577. (2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007; PART B). https://doi.org/10.1115/FEDSM2007-37081

Takana, Hidemasa ; Shoji, Tetsuo ; Ogawa, Kazuhiro ; Nishiyama, Hideya. / Optimization of cold gas dynamic spray processes by computational simulation. 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007. PART B. ed. 2007. pp. 1569-1577 (2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007; PART B).

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