Abstract: The energy equation for constant density fluid flow with the viscous dissipation term is often used for the governing equations of gas flow with low velocity in microchannels. If the gas is an ideal gas with low velocity, ...

Abstract: The analytical solution in the fully developed region of a slip flow in a circular microtube with constant wall temperature is obtained to verify the conventional temperature jump boundary condition when both viscous ...

Abstract: This paper focuses on underexpanded gaseous flow at a straight microtube exit. The pitot total pressure of gas flow (jet) in the downstream region from a straight microtube exit was measured by a total pressure pitot tube ...

Abstract: Laminar flow of nitrogen gas in a microtube was simulated numerically to obtain velocity profile and Fanning friction factor in a quasi-fully developed region. The numerical procedure based on arbitrary-Lagrangian–Eulerian ...

Abstract: In this paper, we report on experimental results to measure the total temperature of nitrogen gas at the inlet and outlet of microtubes with constant wall temperature and to quantitatively determine the heat transfer rates. ...

Abstract: Abstract. This study investigates the effect of compressibility on the kinetic energy correction factor, α, in both laminar and turbulent gaseous flows. In Bernoulli's equation, α is defined as the ratio of kinetic energy ...

Abstract: Many previous studies used the performance factors for the evaluation of heat transfer enhancement of nanofluids under the identical pumping power. The validity of the performance factors was not examined yet. The validity ...

Abstract: A new procedure to solve a nonlinear energy equation using the superposition principle is proposed. As an example of the utilization of this procedure, forced convection in a tube with temperature-dependent fluid properties ...