In recent years, research on metal oxide gas micro-sensors has been rapidly developed. These sensors are small in size, low cost in fabrication and consume little power. The purpose of the current study is to numerically investigate converge micro-channel on gas inlet temperature under the influence of thermal creeping. The governing nonlinear differential equations, mass, momentum, energy, and species, are coupled and solved by a commercial code. Since the Knudsen number is between 0.01 and 0.1, the slip boundary condition, Maxwell equation, is utilized. The result shows that flow velocity and temperature increases from the micro-channel inlet to the heat source and decreases from the heat source to the micro-channel outlet. Also as the inlet height and convergence increases, at the first flow velocity increases then decreases. This trend for temperature is reverse of the trend for flow velocity.
Kandlikar, S. G., Garimella, S., Li, D., Colin, S., King, M. R., “Heat Transfer and Fluid Flow in Minichannels and Microchannels”, Chennai: Elsevier, pp. 9-86, 2006.##
Ohira, S.I., Toda, K., “Micro gas analyzers for environmental and medical applications”, Analytica Chimica Acta, Vol. 619, No. 1, pp. 143-156, 2008.##
Dittrich, P.S., Tachikawa, K., Manz, A., “Micro total analysis latest advancements and trends”, Analytical Chemistry, Vol. 78, No. 12, pp. 3887–3908, 2006.##
Martini,V., Bernardini, S., Bendahan, M., Aguir, K., Perrier, P., Graur, I., “Microfluidic gas sensor with integrated pumping system”, Sensors and Actuators B, Vol. 170, No. 1, pp. 45– 50, 2012.##
M. Bendahan, J. Gu´erin, R. Boulmani, K. Aguir, “WO3 sensor response according to operating temperature: Experiment and modeling”, Sensors and Actuators B, Vol. 124, No. 1, pp. 24-29, 2007.##
Chang, C.W., Maduraiveeran, G., Xu, J.C., Hunter, G.W., Dutta, P.K., “Design, fabrication, and testing of MEMS-based miniaturized potentiometric nitric oxide sensors”, Sensors and Actuators B, Vol. 204, No. 1, pp. 183–189, 2014.##
Martini, V., Graur, I., Bernardini, S., Aguir, K., Perrier, P., Bendahan, M., “Ammonia detection by a novel Pyrex microsystem based on thermal creep phenomenon”, Sensors and Actuators B, Vol. 192, No. 1, pp. 714–719, 2014.##
V. Varade, V.S. Duryodhan, A. Agrawal, A.M. Pradeep, A. Ebrahimi, E. Roohi, “Low Mach number slip flow through diverging microchannel”, Computers & Fluids, Vol. 111, No.1, pp. 46-61, 2015.##
V.S. Duryodhan, A. Singh, S.G. Singh, A. Agrawal, “Convective heat transfer in diverging and converging microchannels”, International Journal of Heat and Mass Transfer, Vol. 80, No.1, pp. 424-438, 2015.##
R. Mazooji, A. Raisi, “Effect of Viscous dissipation on gaseous flow heat transfer in a horizontal microchannel with rarefaction and axial conduction”, Modares Mechanical Engineering, Vol. 13, No. 6, pp. 83-95, 2013. (in Persian)##
B. Behroozi, M. Ghassemi, “Effect of Micro-Channel Wall Thickness and Diameter on Inlet Gas Temperature and Velocity under the Influence of Thermal Creeping”, Modares Mechanical Engineering, Vol. 17, No. 4, pp. 154-160, 2017. (in Persianفارسی )##
V. Martini, S. Bernardini, M. Bendahan, K. Aguir, , P. Perrier, I. Graur., “Fabrication and characterization of gas detection microfluidic System”, Procedia Engineering, vol. 5, No. 1, pp. 1188–1191, 2010.##
J.G. Méolans, I.A. Graur, “Continuum analytical modeling of thermal creep”, European Journal of Mechanics B, Vol. 27, No. 6, pp. 785-809, 2008.##
M. Kamvar, M. Ghassemi, “Performance analysis of coplanar single chamber solid oxide fuel cell with oxygen-methane-nitrogen mixture under steady state conditions”, Modares Mechanical Engineering, Vol. 17, No. 1, pp. 31-38, 2017. (in Persianفارسی ).##
Zahmatkesh I., Alishahi M.M., Emdad H., “New velocity-slip and temperature-jump boundary conditions for Navier–Stokes computation of gas mixture flows in microgeometries”, Mechanics Research Communications, Vol. 38, No. 6, pp. 417-424, 2011.##
behroozi, B. (2020). Numerical Investigation of Gas Temperature and Velocity at Converging Micro-sensor Under the Influence of Thermal Creeping. Fluid Mechanics & Aerodynamics, 8(2), 87-95.
MLA
behrooz behroozi. "Numerical Investigation of Gas Temperature and Velocity at Converging Micro-sensor Under the Influence of Thermal Creeping". Fluid Mechanics & Aerodynamics, 8, 2, 2020, 87-95.
HARVARD
behroozi, B. (2020). 'Numerical Investigation of Gas Temperature and Velocity at Converging Micro-sensor Under the Influence of Thermal Creeping', Fluid Mechanics & Aerodynamics, 8(2), pp. 87-95.
VANCOUVER
behroozi, B. Numerical Investigation of Gas Temperature and Velocity at Converging Micro-sensor Under the Influence of Thermal Creeping. Fluid Mechanics & Aerodynamics, 2020; 8(2): 87-95.
)
