... conducted with nitrogen gas flowing in a stainless steel microtube with a diameter of 524 μ m and a copper microtube with a diameter of 537 μ m. The temperature differences between the inlet and the wall were maintained at 3, 5, and 10 K by circulating water around the inlet and the wall. The stagnation...

...Lianfu Dai; Huiying Wu; Jun Tang The unified gas kinetic scheme (UGKS) is introduced to simulate the near transition regime gas flow and heat transfer in microchannel confined between isothermal and nonisothermal parallel plates. The argon gas is used and its inlet Knudsen number (Kn in ) ranges...

...Chungpyo Hong; Takaharu Yamamoto; Yutaka Asako; Koichi Suzuki This paper describes experimental results on heat transfer characteristics of gaseous flow in a microtube with constant wall temperature. The experiments were performed for nitrogen gas flow through three microtubes of 123 μm, 163 μm...

... frequency, and systematically compare the actual response to the two-body simulated response to determine the wall thermal properties. The wall conductivity k 2 and the wall diffusivity α 2 are to be sought. In gas flows, the flow calibration of thermal shear-stress sensors...