{'fraction_non_alphanumeric': 0.018461538461538463, 'fraction_numerical': 0.011282051282051283, 'mean_word_length': 5.062111801242236, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 1, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Velocity Profiles of Liquid Flow in Backward Facing Step Microchannel

Miniaturization trend has been the core catalyst in application device development. In the fluid flow applications have been carved and mirrored to biological micro fluid flow. Microfluidics is an emerging field where extensive applications are being explored namely in biomedical and electronics.In this paper, simulation of liquid flow in Backward Facing Step (BFS) microchannel was investigated to study liquid velocity profile before and after the step. The simulation has been carried out for various Reynolds numbers ranging from 0.1 to 500. The simulations result shows a parabolic profile is observed before and after the step. Besides that, higher magnitude in velocity profile is observed before the step compared to the velocity profile after the step. In addition, slip velocity is also has been observed for Reynolds numbers >; 100. Ansys CFX 11.0 software is used to perform the simulation.