...Francine Battaglia; Jonas A. England; Bahareh Estejab A new method was developed to predict the pressure drop and minimum fluidization velocity as a function of inlet gas velocity for multicomponent fluidized beds. The method attributes the changing bed composition during the fluidization process...

... and improve the predictive capabilities of specialized correlations and computational tools. Presently, very limited experimental data is available on the local subchannel pressure drop. Experimental measurements of subchannel pressure drop were conducted in a 61-pin wire-wrapped rod bundle replica...

...Saroj K. Patra; Manmatha K. Roul; Prasanta K. Satapathy; Ashok K. Barik The aim of the present study is to investigate fluid dynamics and pressure drop across sudden contractions in a two-dimensional, axisymmetric pipe carrying a two-phase mixture of air (secondary phase) and water (primary phase...

...Lalit Kumar Bohra; Leo M. Mincks; Srinivas Garimella An experimental study on the flow of a highly viscous fluid through small diameter orifices was conducted. Pressure drops were measured for each of nine orifices, including orifices of nominal diameter 0.5, 1, and 3 mm and three different orifice...

... the bundle, and fluid pressure drop was measured across one wire pitch for a Reynolds number range of 500–17,200. The Darcy–Weisbach friction factor of the perturbed rod bundle geometry was compared with that of the unblocked bundle, as well as with the predictions of a well-established friction factor...

... for the sodium thiosulfate to react with the chlorine was less than 12 h. Once fully hydrated, the stock solutions were diluted to the desired test concentration a few minutes prior to testing in the pressure vessel used to deliver the sample to the pressure drop apparatus. Polymer solution concentrations...

... is considered to follow power-law characteristic. Based on the Poisson–Nernst–Planck model, the simulations are performed to investigate the mixing efficiency and pressure drop for constricted and expanded configurations over a wide range of the flow behavior index, potential patch strength, and geometric...

...Ammar Zeghloul; Hiba Bouyahiaoui; Abdelwahid Azzi; Abbas H. Hasan; Abdelsalam Al-sarkhi This paper presents an experimental investigation of the pressure drop (DP) through valves in vertical upward flows. Experiments were carried out using a 1¼″ (DN 32) ball and gate valve. Five opening areas have...

... discretization for different polynomial order solutions are also studied, finding only minor differences between each case. Pressure drop and velocity statistics show reasonable agreement with PIV. Proper orthogonal decomposition (POD) analysis reveals that the primary modes are similar between experiment...

... Pressure drop Slurry flows Channel Pipe flows Non-Newtonian slurry flows are found in many industries, especially in the mining and petrochemical industries. Also, sludge from municipal waste treatment systems usually behave as non-Newtonian slurries. Driven by regulatory requirements (e.g...

...; final manuscript received May 10, 2018; published online June 26, 2018. Assoc. Editor: Wayne Strasser. 08 10 2017 10 05 2018 Experimental techniques Hydrodynamics Pressure drop Pumps Turbomachines Anyhow several researchers [ 17 – 24 ] have investigated the influence...

... i = the pressure on the faces of the computational cells located on valve core bottom (Pa) v = inlet velocity (m/s) y o = the initial displacement of the spring (m) Δp = pressure difference before and after valve core (Pa) Δp 1 = pressure drop between...

... , and τ w is the wall shear stress, which is estimated from the mean pressure drop, Δ p , over a length, L , between two pressure taps along the pipe away from pipe inlet where the flow is fully developed as τ w = D Δ p / 4 L . More details about the facility can be found...

...Manojkumar Gudala; Shirsendu Banerjee; Ravindra Kumar; T. Rama Mohan Rao; Ajay Mandal; Tarun Kumar Naiya The hydrodynamic entrance length, pressure drop analysis, viscosity, and fully developed velocity profile in horizontal pipe for crude oil with and without water and surfactant were studied...

...Wameedh T. M. Al-Tameemi; Pierre Ricco The pressure drop across 90 deg sharp-angled miter elbows connecting straight circular pipes is studied in a bespoke experimental facility by using water and air as working fluids flowing in the range of bulk Reynolds number 500 < Re < 60 , 000...

... LUIDS E NGINEERING . Manuscript received July 19, 2017; final manuscript received November 29, 2017; published online January 24, 2018. Assoc. Editor: Mhamed Boutaous. 19 07 2017 29 11 2017 Complex flows Drag Duct Non-Newtonian flows Pressure drop Channel Pipe flows...

... received February 20, 2017; final manuscript received August 24, 2017; published online January 9, 2018. Assoc. Editor: Mhamed Boutaous. 20 02 2017 24 08 2017 Duct Industrial flows Pressure drop Pumps Channel Pipe flows Turbomachines Flow of non...

... Valley (Italy) ,” Water Qual., Exposure Health , 2 ( 1 ), pp. 1 – 13 . 10.1007/s12403-009-0020-9 [7] Wang , J. , 2008 , “ Pressure Drop and Flow Distribution in Parallel-Channel Configurations of Fuel Cells: U-Type Arrangement ,” Int. J. Hydrogen Energy , 33 ( 21 ), pp. 6339 – 6350...

... Industrial flows Micro-scale flows Pressure drop Disordered media flow analysis can provide significant design direction and research findings across a variety of fields such as oil and gas, chemical, automotive, and environmental engineering and sciences. However, the multiscale nature of porous...

...; final manuscript received September 15, 2017; published online October 31, 2017. Assoc. Editor: Shizhi Qian. 16 05 2017 15 09 2017 Cavitation Computational fluid dynamics Fluid-structure interaction Hydrodynamics Pressure drop Globe valves are widely used as regulation...