Xem 1-15 trên 15 kết quả Fluid flow control
  • Low specific speed centrifugal pumps have low flow rates and high heads. They are widely applied in the petroleum, chemical, aerospace, pharmaceuticals, metallurgy, and light industries, among others. With the development of space technology and petrol chemical industry, the highly stable cavitation performance of centrifugal pumps has been put forward. Poor cavitation performance is one of the key problems in low specific speed centrifugal pumps.

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  • The book "Wind Tunnels and Experimental Fluid Dynamics Research" is comprised of 33 chapters divided in five sections. The first 12 chapters discuss wind tunnel facilities and experiments in incompressible flow, while the next seven chapters deal with building dynamics, flow control and fluid mechanics. Third section of the book is dedicated to chapters discussing aerodynamic field measurements and real full scale analysis (chapters 20-22).

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  • This book reports the latest development and trends in the low Re number aerodynamics, transition from laminar to turbulence, unsteady low Reynolds number flows, experimental studies, numerical transition modelling, control of low Re number flows, and MAV wing aerodynamics. This book focuses particularly on: (1) a review and brief information study on low Reynolds number flows and transition as an introduction to low Re number aerodynamics (Chapter 1), (2) transition modelling (Chapters 2-4), flow control (Chapters 5-7).

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  • Valves are the controlling elements in fluid flow and pressure systems. Like many other engineering components, they have developed over some three centuries from primitive arrangements into a wide range of engineered units satisfying a great variety of industrial needs. The wide range of valve types available is gratifying to the user because the probability is high that a valve exists that matches the application.

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  • If we consider that aerodynamics, from a modern point of view, is a branch of physics that study physical laws and their applications, regarding the displacement of a body into a fluid, such concept could be applied to any body moving in a fluid at rest or any fluid moving around a body at rest. The general concept outlined above is applicable to planes; cars; boats; big ships; missiles; wind energy generators; small flying objects, like UAVs; etc.

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  • Analysis and abatement of air pollution involve a variety of technical disciplines. Formation of the most prevalent pollutants occurs during the combustion process, a tightly coupled system involving fluid flow, mass and energy transport, and chemical kinetics. Its complexity is exemplified by the fact that, in many respects, the simplest hydrocarbon combustion, the methane-oxygen flame, has been quantitatively modeled only within the last several years.

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  • Parametric representation of shapes, mechanical components modeling with 3D visualization techniques using object oriented programming, the well known golden ratio application on vertical and horizontal displacement investigations of the ground surface, spatial modeling and simulating of dynamic continuous fluid flow process, simulation model for waste-water treatment, an interaction of tilt and illumination conditions at flight simulation and errors in taxiing performance, plant layout optimal plot plan, atmospheric modeling for weather prediction, a stochastic search method that explores ...

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  • The centrifugal pumps with the actual configuration constitute a machine widely used for more than 150 years. The pumps are analyzed and examined in detail, a lot of experience from the design, construction and application of centrifugal pumps is accumulated worldwide but still there is an endless number of topics that need supplementary examination, mainly of topics arising from the interaction between the pump and the pumping installation.

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  • that can occur during the various phases of oil and gas recovery from subsurface reservoirs including production, drilling, hydraulic fracturing, and workover operations. Formation damage assessment, control, and remediation are among the most important issues to be resolved for efficient exploitation of hydrocarbon reservoirs. Such damage is caused by various adverse processes, including chemical, physical, biological, and thermal interactions of formation and fluids, and deformation of formation under stress and fluid shear.

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  • Following site characterization, working hypotheses about important mechanisms that control the behavior of injected CO2 are developed and tested. This approach has been studied extensively over the last decade from a risk assessment perspective (Savage et al., 2004; Lewicki et al., 2006). The mechanisms that have controlled past behavior, and will control future behavior, need to be understood through fluid flow simulation based on an understanding of the fluid and chemical processes active at the pore level and guided by available injection/production and monitoring data.

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  • CHAPTER 4 5 FURNACES Carroll Cone Toledo, Ohio 45.1 45.2 45.3 45.4 45.5 45.6 45.7 45.8 SCOPE AND INTENT 1 5 4 0 45.9 STANDARD CONDITIONS 1 5 4 0 45.2.1 Probable Errors 1 5 4 0 FURNACE TYPES 1 5 4 0 1453 1454 45.10 FLUID FLOW 1 8 4 5 45.9.1 Preferred Velocities 1 8 4 5 45.9.2 Centrifugal Fan Characteristics 1 8 4 6 45.9.3 Laminar and Turbulent Flows 1 8 4 7 BURNER AND CONTROL EQUIPMENT 1 8 4 8 45.10.1 Burner Types 1 8 4 9 45.10.2 Burner Ports 1 9 4 4 45.10.3 Combustion Control Equipment 1 9 4...

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  • The transmission and control of power by means of fluid under pressure is becoming in creasingly used in all branches of industry. Pneumatics deal with the use of compressed air as the fluid whilst hydraulic power covers the use of oils and other liquids.

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  • The key component of osteocyte’s mechanosensing apparatus is the pericellular matrix. limited electron microscope studies reveal that this fluffy “jungle” consists of nanoscale fibrous structures, (about 100nm thick), filling the tiny gap between the cell membrane and the bone matrix. Mechanically, it controls the hydraulic permeability of the bone tissue, determining how easy fluid flows around the cells under external loading.

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  • Chapter 5 (Part 1) - Mass and energy analysis of control volumes. We start this chapter with the development of the general conservation of mass relation for control volumes, and we continue with a discussion of flow work and the energy of fluid streams.

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  • CHAPTER 43 FLUID POWER SYSTEMS AND CIRCUIT DESIGN Russ Henke, RE. Russ Henke Associates Elm Grove, Wisconsin 43.1 PRESSURE PLOTS / 43.2 43.2 FLOW PLOTS / 43.2 43.3 POWER PLOTS / 43.3 43.4 CYCLE PROFILE / 43.4 43.5 CIRCUIT DESIGN / 43.4 43.6 OPEN-LOOP AND CLOSED-LOOP CIRCUITS / 43.5 43.7 CONSTANT-FLOW VERSUS DEMAND-FLOW CIRCUITS—OPEN LOOP / 43.12 43.8 DEMAND-FLOW CIRCUITS / 43.20 43.9 HYDRAULIC VERSUS PNEUMATIC SYSTEMS / 43.28 43.10 PNEUMATIC CIRCUITS / 43.28 43.11 EFFECT OF FLUID CHARACTERISTICS ON ACTUATOR PERFORMANCE / 43.28 43.

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