Archive:: International Journal of Fluid Mechanics & Thermal Sciences:: Science Publishing Group

Volume 11, Issue 2, June 2025

Research Article
Relationship Between Water Surface Elevation and Mean Water Depth for a Partially Wetted Rectangular Grid Cell in Numerical Simulations of Shallow Water Flows with Complex Topography

Kwang Hyok Ri, Myong Chol Ri^*, Kwang Chol Jon, Ji Song Jong, Jin Hyok Choe

Issue: Volume 11, Issue 2, June 2025

Pages: 14-19

Received: 21 May 2025

Accepted: 16 June 2025

Published: 10 July 2025

DOI: 10.11648/j.ijfmts.20251102.11

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Abstract: We propose a relationship between the water surface elevation and the mean water depth for partially wetted rectangular grid cells in the numerical simulation of shallow water flow with complex topography, and apply it to the numerical simulation of shallow water flow to verify the correctness of the relationship. Many natural terrains have complic... Show More

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Research Article
Analysis of Turbulent Natural Convection of Heat Transfer with Localized Heating and Cooling on Opposite Surface of a Vertical Cylinder

Omariba Geofrey Ong'era^*, Johana Kibet Sigey, Jeconia Abonyo Okelo, Stephen Mbugua Karanja

Issue: Volume 11, Issue 2, June 2025

Pages: 20-32

Received: 4 June 2025

Accepted: 16 June 2025

Published: 10 July 2025

DOI: 10.11648/j.ijfmts.20251102.12

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Abstract: Turbulent flow results from the erratic change in velocity and direction of a fluid flow over time. Hence producing irregular mixing and increased transport processes during the flow. Especially for those relying on passive heat transfer methods, designing efficient thermal energy systems requires an awareness of turbulent natural convection. This ... Show More

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