in this paper, size distribution of nano-bubbles was measured by the reliable and fast method of laserdiffraction technique. nano-bubbles were produced using a nano-bubble generator designed and madebased on hydrodynamic cavitation phenomenon in venturi tubes. a central composite design withresponse surface methodology was used to conduct a five factor, five level factorial experimental designo...

Groin is expected to be used for various purposes. For each purpose, groin arrangement has been studied comprehensively through observations, experiments and numerical analyses.Flow around a groin has 3-D characteristic. For practical applications, a quasi-3-D numerical model is developed with introduction of hydrodynamic force on groin to predict flow and bed topography. The hydrodynamic force...

in this research, the total torque input and output shafts were subjected to are used to formulate twodifferential equations using applied dynamics and fluid mechanics. the equations show that the input andoutput torques are a function of the constant geometrical parameters of a torque converter, includinginternal and external diameters of vanes, angle and length of vanes, cross section area be...

This paper presents an overview of some of the research performed at the Bureau of Reclamation, Mid-Pacific GIS Service Center over the past two years related to the application of ArcObjects technology involving hydrodynamic modeling. Topics include finite element mesh generation and the representation of mesh components as a geometric network, construction of 3D fence diagrams in applications...

In simulations of (magnetized-)fluid dynamics in physics and astrophysics, the visu-alization techniques are so frequently applied to analyse data that they have become a fundamental part of the research. Data produced is often a multi-dimensional set with several physical quantities, that are usually complex to manage and analyse. JETGET is a visualization and analysis tool we developed for ac...

Analytical and numerical solution of Navier Stokes equation coupled with Maxwell’s equation have been proposed with its experimental prototype model. The MHD system based on two and three dimensional processes were formulated and simulated using MATLAB with iterative approach. Experimental results were obtained by the developed prototype model. Non Linearity issues i.e. turbulence in fluid flow...

Coefficients or hydrodynamic derivatives of autonomous underwater vehicles play a key role in their development. The most popular way for the estimation of coefficient is to implement captive model tests such as straight line tests and planar motion mechanism tests in towing tanks. In this paper, investigation of hydrodynamic derivatives was performed based on the water tunnel maneuvers. Forces...

Dense suspensions of magnetotactic bacteria form long, thin, stable bands perpen­ dicutar to the common, net direction of motion of the cells in a magnetic field. A mechanism for this phenomenon is proposed in which the hydrodynamic coupling between two swimming cells is described in terms of an approximate, far-field solution for the flow around one swimming cell. The calculated hydrodynamic i...

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