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RISS 인기검색어
- 검색키워드
- 저자 : M.T.RAHIM (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
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EXACT SOLUTION FOR STEADY PAINT FILM FLOW OF A PSEUDO PLASTIC FLUID DOWN A VERTICAL WALL BY GRAVITY
M.K.ALAM,M.T.RAHIM,S.ISLAM,A.M.SIDDIQUI 한국산업응용수학회 2012 Journal of the Korean Society for Industrial and A Vol.16 No.3
Here in this paper, the steady paint film flow on a vertical wall of a non-Newtonian pseudo plastic fluid for drainage problem has been investigated. The exact solution of the non-linear problem is obtained for the velocity profile. Also the average velocity, volume flux, shear stress on the wall, force to hold the wall in position and normal stress difference have been derived. We retrieve Newtonian case, when material constant μ₁ and relaxation time λ₁ equal zero. The results for co-rotational Maxwell fluid is also obtained by taking material constant μ₁ = 0. The effect of the zero shear viscosity η?, the material constant μ₁, the relaxation time λ₁ and gravitational force on the velocity profile for drainage problem are discussed and plotted.
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Initial Study of a Wire Mesh Tomography Sensor for Liquid/Gas Component Investigation
M.H.F. Rahiman,L.T. Siow,Z. Zakaria,Vernoon Ang,R.A. Rahim 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.5
Experimental studies have been carried out to study the principle operation of the conductive type wire-mesh tomography sensor and analyse the wire-mesh tomography sensor for the liquid/gas two-phase flow interface and void fraction distribution in a process column. The measurement of the two-phase flows in the process column is based on the cross-sectional local instantaneous conductivity. The sensor consists of two planes of parallel electrode wires with 16 electrodes each and was placed orthogonally with each plane. The sensor electrode wires were made of tinned copper wire with an outer diameter of 0.91 mm which stretched over the sensor fixture. Therefore, this result in the mesh grid size with 5.53×5.53mm2. The wire-mesh sensor was tested in a horizontal liquid/gas two-phase flows process column with nominal diameter of 95.6 mm and the sampling frequency of 5882.3529 Hz. The tomogram results show that the wire-mesh tomography provides significant results to represent the void fraction distribution in the process column and estimation error was found in the liquid/gas interface level.
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Initial Study of a Wire Mesh Tomography Sensor for Liquid/Gas Component Investigation
Rahiman, M.H.F.,Siow, L.T.,Rahim, R.A.,Zakaria, Z.,Ang, Vernoon The Korean Institute of Electrical Engineers 2015 Journal of Electrical Engineering & Technology Vol.10 No.5
Experimental studies have been carried out to study the principle operation of the conductive type wire-mesh tomography sensor and analyse the wire-mesh tomography sensor for the liquid/gas two-phase flow interface and void fraction distribution in a process column. The measurement of the two-phase flows in the process column is based on the cross-sectional local instantaneous conductivity. The sensor consists of two planes of parallel electrode wires with 16 electrodes each and was placed orthogonally with each plane. The sensor electrode wires were made of tinned copper wire with an outer diameter of 0.91 mm which stretched over the sensor fixture. Therefore, this result in the mesh grid size with 5.53×5.53mm<sup>2</sup>. The wire-mesh sensor was tested in a horizontal liquid/gas two-phase flows process column with nominal diameter of 95.6 mm and the sampling frequency of 5882.3529 Hz. The tomogram results show that the wire-mesh tomography provides significant results to represent the void fraction distribution in the process column and estimation error was found in the liquid/gas interface level
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