0
Research Papers: Fundamental Issues and Canonical Flows

Flow Behavior and Pressure Drop in Porous Disks With Bifurcating Flow Passages

[+] Author and Article Information
David Calamas

Student Mem. ASME
Graduate Research Assistant
Department of Mechanical Engineering,
The University of Alabama,
Tuscaloosa, AL 35487-0276
e-mail: dmcalamas@crimson.ua.edu

John Baker

Mem. ASME Professor
e-mail: john.baker@eng.ua.edu

Muhammad Sharif

ASME Mem. Associate Professor
e-mail: msharif@eng.ua.edu
Department of Aerospace Engineering and Mechanics,
The University of Alabama,
Tuscaloosa, AL 35487-0276

Contributed by the Fluids Engineering Division of ASME for publication in the Journal of Fluids Engineering. Manuscript received March 1, 2013; final manuscript received May 17, 2013; published online July 23, 2013. Assoc. Editor: Michael G. Olsen.

J. Fluids Eng 135(10), 101202 (Jul 23, 2013) (9 pages) Paper No: FE-13-1127; doi: 10.1115/1.4024662 History: Received March 01, 2013; Revised May 17, 2013

The performance of a porous disk with hierarchical bifurcating flow passages has been examined. The hierarchical bifurcating flow passages in the heat exchanger mimic those seen in the vascular systems of plants and animals. The effect of bifurcation angle, porosity, and pore size on the pressure drop across a porous disk was examined computationally. The pressure drop across the porous disk was found to increase as the pore size decreased. As the bifurcation angle increased the pressure drop also increased. At high porosities the bifurcation angles did not have an impact on the pressure drop across the porous disk due to flow behavior. Similarly, the effect of bifurcation angle on pressure drop decreased as the pore size increased.

Copyright © 2013 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Fig. 1

Nomenclature and coordinate system for branching flow networks

Grahic Jump Location
Fig. 2

15, 30, 45, 60, 75, and 90 deg porous disks

Grahic Jump Location
Fig. 3

Computational model exploded view and assembly

Grahic Jump Location
Fig. 4

Computational model geometry validation

Grahic Jump Location
Fig. 5

Computational model porous material validation

Grahic Jump Location
Fig. 6

Pressure drop as a function of flow rate, bifurcation angle, and pore size (ε = 0.03)

Grahic Jump Location
Fig. 7

Pressure drop as a function of flow rate, bifurcation angle, and pore size (ε = 0.25)

Grahic Jump Location
Fig. 8

Pressure drop as a function of flow rate and bifurcation angle (ε = 0.5, 40 PPI)

Grahic Jump Location
Fig. 9

Pressure drop as a function of flow rate and pore size (ε = 0.03, 0.25, θ = 45 deg)

Grahic Jump Location
Fig. 10

Pressure drop as a function of flow rate and pore size (ε = 0.5, 75 θ = 45 deg)

Grahic Jump Location
Fig. 11

Pressure drop as a function of flow rate and pore size (ε = 0.97, θ = 45 deg)

Grahic Jump Location
Fig. 12

Pressure drop as a function of flow rate and porosity (θ = 45 deg, 40 PPI)

Grahic Jump Location
Fig. 13

Pressure drop as a function of flow rate and porosity (θ = 45 deg, 20 PPI)

Grahic Jump Location
Fig. 14

Pressure drop as a function of flow rate and porosity (θ = 45 deg, 10 PPI)

Grahic Jump Location
Fig. 15

Fluid pressure isolines for the 15 (left) and 90 (right) deg porous disks (ε = 0.03, 40 PPI, Q = 3 lpm)

Grahic Jump Location
Fig. 16

Fluid pressure isolines for the 15 (left) and 90 (right) deg porous disks (ε = 0.03, 40 PPI, Q = 3 lpm)

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In