Algorithm of the effect of g-jittren on free convection adjacent to a stretching sheet
g-Jitter characterizes a small fluctuating gravitational field brought about, among others, by crew movements and machine vibrations aboard spacecrafts or in other low-gravity environments such as the drop-tower and parabolic flights. Experimental studies have shown that in these low-gravity environ...
| Main Author: | |
|---|---|
| Format: | Monograph |
| Language: | English |
| Published: |
Faculty of Science
2009
|
| Subjects: | |
| Online Access: | http://eprints.utm.my/9706/1/78077.pdf |
| _version_ | 1796854565195218944 |
|---|---|
| author | Shafie, Sharidan |
| author_facet | Shafie, Sharidan |
| author_sort | Shafie, Sharidan |
| collection | ePrints |
| description | g-Jitter characterizes a small fluctuating gravitational field brought about, among others, by crew movements and machine vibrations aboard spacecrafts or in other low-gravity environments such as the drop-tower and parabolic flights. Experimental studies have shown that in these low-gravity environments, g-jitter can induce appreciable convective flow that can be detrimental to certain experiments such as crystal growths and solidification processes. In this research, mathematical models to study the effect of g-jitter on heat and mass transfer is developed. Specific problem considered revolve around the effect of g-jitter induced free convection, on the flow and heat transfer characteristics associated with a stretching vertical surface in a viscous and incompressible fluid. The velocity and temperature of the sheet are assumed to vary linearly with x, where x is the distance along the sheet. It is assumed that the gravity vector modulation is given by g *(t) = go [1+ε cos (π ω t)]k , and the resulting non-similar boundary layer equations are solved numerically using an implicit finite-difference scheme. Results presented include fluid flow and heat transfer characteristics for various parametric physical conditions such as the amplitude of modulation, frequency of the single-harmonic component of oscillation, buoyancy force parameter and Prandtl number on the skin friction and Nusselt number. This theoretical investigation is useful in providing estimates of the tolerable effects of g-jitter which will help to ensure the design of successful experiments in low-gravity environments. |
| first_indexed | 2024-03-05T18:15:57Z |
| format | Monograph |
| id | utm.eprints-9706 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T18:15:57Z |
| publishDate | 2009 |
| publisher | Faculty of Science |
| record_format | dspace |
| spelling | utm.eprints-97062017-08-15T01:49:41Z http://eprints.utm.my/9706/ Algorithm of the effect of g-jittren on free convection adjacent to a stretching sheet Shafie, Sharidan Q Science (General) g-Jitter characterizes a small fluctuating gravitational field brought about, among others, by crew movements and machine vibrations aboard spacecrafts or in other low-gravity environments such as the drop-tower and parabolic flights. Experimental studies have shown that in these low-gravity environments, g-jitter can induce appreciable convective flow that can be detrimental to certain experiments such as crystal growths and solidification processes. In this research, mathematical models to study the effect of g-jitter on heat and mass transfer is developed. Specific problem considered revolve around the effect of g-jitter induced free convection, on the flow and heat transfer characteristics associated with a stretching vertical surface in a viscous and incompressible fluid. The velocity and temperature of the sheet are assumed to vary linearly with x, where x is the distance along the sheet. It is assumed that the gravity vector modulation is given by g *(t) = go [1+ε cos (π ω t)]k , and the resulting non-similar boundary layer equations are solved numerically using an implicit finite-difference scheme. Results presented include fluid flow and heat transfer characteristics for various parametric physical conditions such as the amplitude of modulation, frequency of the single-harmonic component of oscillation, buoyancy force parameter and Prandtl number on the skin friction and Nusselt number. This theoretical investigation is useful in providing estimates of the tolerable effects of g-jitter which will help to ensure the design of successful experiments in low-gravity environments. Faculty of Science 2009-01-31 Monograph NonPeerReviewed application/pdf en http://eprints.utm.my/9706/1/78077.pdf Shafie, Sharidan (2009) Algorithm of the effect of g-jittren on free convection adjacent to a stretching sheet. Project Report. Faculty of Science, Skudai, Johor. (Unpublished) |
| spellingShingle | Q Science (General) Shafie, Sharidan Algorithm of the effect of g-jittren on free convection adjacent to a stretching sheet |
| title | Algorithm of the effect of g-jittren on free convection adjacent to a stretching sheet |
| title_full | Algorithm of the effect of g-jittren on free convection adjacent to a stretching sheet |
| title_fullStr | Algorithm of the effect of g-jittren on free convection adjacent to a stretching sheet |
| title_full_unstemmed | Algorithm of the effect of g-jittren on free convection adjacent to a stretching sheet |
| title_short | Algorithm of the effect of g-jittren on free convection adjacent to a stretching sheet |
| title_sort | algorithm of the effect of g jittren on free convection adjacent to a stretching sheet |
| topic | Q Science (General) |
| url | http://eprints.utm.my/9706/1/78077.pdf |
| work_keys_str_mv | AT shafiesharidan algorithmoftheeffectofgjittrenonfreeconvectionadjacenttoastretchingsheet |