Microfluidic Devices Fabricated by LTCC Combined with Thick Film Lithography

Low temperature co-fired ceramic (LTCC) process combined with thick film photolithography was employed to fabricate ceramic-based microfluidic devices. To check the applicability of novel process, three types of passive mixers, diffusion-driven T-type mixers with different channel width and convection-driven chaotic mixer, were fabricated and their microfluidic performance was evaluated. It was confirmed that the degree of mixing in ceramic-based microfluidic passive mixers was well matched with the numerical simulation data.

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Improved low-Reynolds-number k-epsilon-tilde model based on direct numerical simulation data

AIAA Journal ◽

10.2514/3.13775 ◽

1998 ◽

Vol 36 ◽

pp. 38-43

Author(s):

C. B. Hwang ◽

C. A. Lin

Keyword(s):

Numerical Simulation ◽

Reynolds Number ◽

Direct Numerical Simulation ◽

Low Reynolds Number ◽

Simulation Data ◽

Direct Numerical Simulation Data ◽

Model Based ◽

Low Reynolds

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Testing CFD-DEM method with a stochastic drag formulation using particle-resolved direct numerical simulation data as benchmark

Chemical Engineering Science ◽

10.1016/j.ces.2021.116657 ◽

2021 ◽

pp. 116657

Author(s):

Junwu Wang ◽

Peng Zhao ◽

Bidan Zhao

Keyword(s):

Numerical Simulation ◽

Direct Numerical Simulation ◽

Simulation Data ◽

Direct Numerical Simulation Data

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Numerical Simulation Study on High-Temperature Ventilated Cavitating Flow Considering the Compressibility of Gases

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.569.395 ◽

2012 ◽

Vol 569 ◽

pp. 395-399

Author(s):

Jing Zhao ◽

Guo Yu Wang ◽

Yan Zhao ◽

Yue Ju Liu

Keyword(s):

Numerical Simulation ◽

State Equation ◽

Field Structure ◽

Cavitating Flow ◽

Simulation Approach ◽

Gas Velocity ◽

Simulation Data ◽

Ventilated Cavity ◽

Supercavitating Flow ◽

Fluctuation Range

A numerical simulation approach of ventilated cavity considering the compressibility of gases is established in this paper, introducing the gas state equation into the calculation of ventilated supercavitating flow. Based on the comparison of computing results and experimental data, we analyzes the differences between ventilated cavitating flow fields with and without considered the compressibility of gases. The effect of ventilation on the ventilated supercavitating flow field structure is discussed considering the compressibility of gases. The results show that the simulation data of cavity form and resistance, which takes the compressibility of gases into account, accord well with the experimental ones. With the raising of ventilation temperature, the gas fraction in the front cavity and the gas velocity in the cavity increase, and the cavity becomes flat. The resistance becomes lower at high ventilation temperature, but its fluctuation range becomes larger than that at low temperature.

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