On the Asymptotic Approach to Thermosolutal Convection in Heated Slow Reactive Boundary Layer Flows
Joint Authors
Sibanda, Precious
Shateyi, Stanford
Motsa, Sandile Sydney
Source
Journal of Applied Mathematics
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-10-16
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
The study sought to investigate thermosolutal convection and stability of two dimensional disturbances imposed on a heated boundary layer flow over a semi-infinite horizontal plate composed of a chemical species using a self-consistent asymptotic method.
The chemical species reacts as it diffuses into the nearby fluid causing density stratification and inducing a buoyancy force.
The existence of significant temperature gradients near the plate surface results in additional buoyancy and decrease in viscosity.
We derive the linear neutral results by analyzing asymptotically the multideck structure of the perturbed flow in the limit of large Reynolds numbers.
The study shows that for small Damkohler numbers, increasing buoyancy has a destabilizing effect on the upper branch Tollmien-Schlichting (TS) instability waves.
Similarly, increasing the Damkohler numbers (which corresponds to increasing the reaction rate) has a destabilizing effect on the TS wave modes.
However, for small Damkohler numbers, negative buoyancy stabilizes the boundary layer flow.
American Psychological Association (APA)
Shateyi, Stanford& Sibanda, Precious& Motsa, Sandile Sydney. 2008. On the Asymptotic Approach to Thermosolutal Convection in Heated Slow Reactive Boundary Layer Flows. Journal of Applied Mathematics،Vol. 2008, no. 2008, pp.1-15.
https://search.emarefa.net/detail/BIM-501921
Modern Language Association (MLA)
Shateyi, Stanford…[et al.]. On the Asymptotic Approach to Thermosolutal Convection in Heated Slow Reactive Boundary Layer Flows. Journal of Applied Mathematics No. 2008 (2008), pp.1-15.
https://search.emarefa.net/detail/BIM-501921
American Medical Association (AMA)
Shateyi, Stanford& Sibanda, Precious& Motsa, Sandile Sydney. On the Asymptotic Approach to Thermosolutal Convection in Heated Slow Reactive Boundary Layer Flows. Journal of Applied Mathematics. 2008. Vol. 2008, no. 2008, pp.1-15.
https://search.emarefa.net/detail/BIM-501921
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-501921