Calculation of the development length of spanwise rotating three-dimensional laminar channel flow. (19th May 2023)

• Record Type: Journal Article
• Authors: Barimani, Manoochehr; Jamei, Mehran Khaki; Abbasi, Morteza
• Is Part Of: Progress in computational fluid dynamics. Volume 23:Number 3(2023)
• Page Start: 170
• Page End: 182
• Publication Date: 2023-05-19
• Subjects: angular velocity -- coriolis -- entrance region -- OpenFOAM -- rotating channel; Fluid dynamics -- Data processing -- Periodicals; Fluid dynamics -- Mathematics -- Periodicals; 620.10640285
• Languages: English
• ISSNs: 1468-4349

Abstract

The study aims to simulate Newtonian laminar fluid flow developments in a three-dimensional channel with a rotating frame of reference. The main objective is to investigate a correlation for calculating the entrance region length in a spanwise rotating channel. OpenFOAM was used to simulate Reynolds numbers (Re) ranging from 10 to 80, angular velocity ( ω ) ranging from 0 to 0.5, and three distinct channel aspect ratios (AR). The length of the entrance region is calculated as a function of Re, AR, and D̅h (dimensionless hydraulic diameter). We conclude that increasing ω results in an increase in entrance region length, which increases threefold for a constant Reynolds number when ω increases from 0 to 0.5. As Re is increased for a given value of ω, the entrance region length is increased by 15 to 35%. Moreover, when 0 ≤ ω ≤ 0.5 varies and 10 ≤ Re ≤ 80, the pressure drops ranges from 25 to 40%.