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- Title
IInsight of boundary layer structure with heat transfer through a diverging porous channel in Darcy-Forchheimer porous material with suction/injection: A study of separation control.
- Authors
BANERJEE, Astick; MAHATO, Sanat Kumar; BHATTACHARYYA, Krishnendu; RAJPUT, Sohita; VERMA, Ajeet Kumar; CHAMKHA, Ali J.
- Abstract
Separation control and formation of boundary layer Newtonian flow in a diverging permeable channel in Darcy-Forchheimer porous material having suction/injection are discussed. Self-similar equations from governing equations are acquired and existence conditions for boundary layer structure are derived using nature of velocity gradient inside boundary layer. It reveals that if sum of Darcy permeability parameter and twice of Forchheimer parameter exceeds 2, then the boundary layer flow always exists with all type of mass suction/injection and even without suction/injection. Also, if mass suction parameter goes beyond 2/2, then there is no matter what are the values of Darcy permeability parameter and Forchheimer parameter, a boundary layer exists inside the divergent channel. In addition, obtained numerical solutions are exhibited graphically. It reveals that thicknesses of velocity and thermal boundary layers reduce with Darcy and non-Darcy resistances of porous medium and fluid temperature also diminishes. The velocity and temperature reduce with increment of mass suction and contrary results are found for mass injection.
- Subjects
BOUNDARY layer (Aerodynamics); THERMAL boundary layer; POROUS materials; BOUNDARY layer control; FLOW separation; HEAT transfer; MESOPOROUS materials
- Publication
Journal of Thermal Engineering, 2023, Vol 9, Issue 6, p1419
- ISSN
2148-7847
- Publication type
Article
- DOI
10.18186/thermal.1395400