Related Experiment Video
Updated: Feb 2, 2026

Rapid PCR Thermocycling using Microscale Thermal Convection
Published on: March 5, 2011
Combined Forced and Thermocreep Convection through a Long Horizontal Microchannel
1Department of Mechanical Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan. hcweng@cycu.edu.tw.
Abstract:
This study examines how thermal creep affects the mixed convection in a long horizontal parallel-plate microchannel under a pressure drop and a temperature rise. The analytical solutions of the fully developed thermal-flow fields and the corresponding characteristics are derived based on the Maxwell boundary conditions with thermal creep and presented for the physical properties of air at the standard reference state. The calculated thermal-flow characteristics reveal that thermal creep has an appreciable effect on the velocity slip, flow rate, and heat transfer rate but a negligible effect on the flow drag. Such a creep effect could be further magnified by decreasing the pressure drop or increasing the Knudsen number.
Related Concept Videos
Introduction to Horizontal Curves
Horizontal Curve: Problem Solving
Horizontal Gene Transfer
Shear on the Horizontal Face of a Beam Element
Conduction, Convection and Radiation: Problem Solving
In order to solve a problem related to heat transfer, first of all, the situation needs to be examined to determine the type of heat transfer involved. This could...
Intermolecular Forces

