List the various models available for flow analysis?

1 Answer

Answer :

For the analysis of a fluid element in its motion, various models are available for the purpose of study such as
a) Finite control volume approach
b) Infinitesimal fluid element approach
c) Molecular approach

Related questions

Description : Explain the constituents of various gases in air and specify its proportions?

Last Answer : Air is a gas which is composed of various gases such as nitrogen, oxygen, carbondi-oxide, argon, etc. Nitrogen – 78% Oxygen – 21% Other gases – 1%

Description : List the different types of aerodynamics?

Last Answer : a) Internal aerodynamics which deals about the flow of air inside the ducts (e.g.) flow through nozzles, flow in a wind tunnel, etc. b) External aerodynamics which deals about the flow around moving objects (e.g.) flow of air over an aircraft.

Description : Tell something about differential and integral approach?

Last Answer : One may establish a big control volume to encompass the region R and calculate the overall features like drag & lift by studying what happens at the control surface. This procedure is called integral approach. Differential ... the flow at every point in a given flow field in the form P(x,y,z,t).

Description : What is finite control volume approach?

Last Answer : Consider a control volume in space drawn within a finite region of the flow. This volume is called as the control volume and the closed surface which surrounds the control volume is called as ... are applied to the fluid inside the control volume and to the fluid crossing the control surface.

Description : What are the procedures for the development of an equation in aerodynamics?

Last Answer : a) Invoke the basic principles of fluid flow a. Mass is conserved b. Momentum is conserved, i.e. Newton‟s second law c. Energy is conserved b) Determine the suitable model of the fluid c) Apply the basic principles in the model of the fluid to obtain the mathematical equations

Description : Where should the resultant force be located on a body?

Last Answer : The resultant force should be located on the body such that it produces the same effect as the distributed loads. Resultant force should be located at a distance of center of pressure Xcp from the leading edge.

Description : What is meant by stream lining a body?

Last Answer : Streamlining is the shaping of an object, such as an aircraft body, to reduce the amount of drag or resistance to motion and increases lift through a stream of air. A curved shape allows air to flow smoothly around it. A flat shape fights air flow and causes more drag or resistance.

Description : What is critical angle of attack and what will happen when it is exceeded?

Last Answer : The angle of attack which produces the maximum lift coefficient is called as the critical angle of attack. It is also called as the "stall angle of attack". At the critical angle of attack ... becomes more and more fully separated and the airfoil produces less coefficient of lift and will stall.

Description : Define angle of attack?

Last Answer : The angle between the chord line of an airfoil and the relative wind is defined as the angle of attack.

Description : What is relative wind velocity?

Last Answer : The relative wind is the direction of movement of the atmosphere relative to an aircraft or an airfoil. It is opposite to the direction of movement of the aircraft or airfoil. The velocity at which this relative wind is flowing is called as the relative wind velocity.

Description : How the concepts of Bernoulli‟s principle differ from Archimedes principle?

Last Answer : Bernoulli‟s principle states that the increase in speed of the fluid element occurs with a decrease in pressure of the fluid. Archimedes principle states that the upward force exerted on an object immersed in a fluid is equal to the weight of the fluid displaced by the object.

Description : Explain the important properties of international standard atmosphere?

Last Answer : International standard atmosphere is the atmospheric model of how the pressure, density and temperature of the earth‟s atmosphere vary over a wide range of altitudes It has several layers a) Troposphere b) Stratosphere c) Mesosphere d) Ionosphere e) Exosphere

Description : Enumerate the names of some notable aerodynamicists?

Last Answer : There are several aerodynamic experts who are responsible for the flight. Some of them are listed as a) Daniel Bernoulli b) Ludwig Prandtl c) George Cayley d) Theodore von Karman e) Martin Wilhelm Kutta f) Richard whitcomb g) Nicholay Zhukowsky

Description : What are the major objectives of aerodynamics?

Last Answer : a) To estimate the aerodynamic forces and moments acting on the bodies moving through the air (e.g.) lift, drag, moments on wings, fuselages, etc. b) To calculate the amount of heat transfer ... (e.g.) aerodynamic heating. c) To determine the flow moving through the air internally and externally.

Description : What are the major classifications of fluid dynamics?

Last Answer : a) Hydrodynamics which deals about the movement of water. b) Gas dynamics which deals about the movement of gases. c) Aerodynamics which deals about the movement of air.

Description : Give the importance of aerodynamics in designing an aircraft?

Last Answer : a) When an aircraft is moving in air, some reactions take place in the properties of air and aerodynamics helps in studying those properties. b) Aerodynamics deals about the proper shape of the aircraft which will reduce the formation of shock waves and helps in achieving the desired Mach number.

Description : What do you mean by aerodynamics?

Last Answer : Aerodynamics is the branch of science which deals with the movement of gases especially air and its interaction with moving objects. Aerodynamics is the study of forces and resulting motion of objects through air.

Description : What types of models are created during software requirements analysis? (A) Functional and behavioral (B) Algorithmic and data structure (C) Architectural and structural (D) Usability and reliability

Last Answer : (A) Functional and behavioral

Description : What are the various types of decision making models?

Last Answer : a. Classical decision making models b. Administrative decision making models c. Political decision making models.

Description : List out the various methods available for performing for analog multiplier.

Last Answer : • Logarithmic summing technique • Pulse height /width modulation technique • Variable transconductance technique • Multiplication using gilbert cell • Multiplication technique using transconductance technique

Description : List various minor losses in fluid flow. Explain any one type with sketch and formula.

Last Answer : List various minor losses a) Sudden expansion of pipe b) Sudden contraction of pipe c) Pipe fittings d) Bend in pipe e) Loss of head at Entry. f) Loss of ... The head loss resulting from pipe expansion may be greatly reduced by introducing gradual pipe transition known as diffuser. 

Description : MacBooks: are matte screens still available on all models (Pro, Air, and standard) as a special order?

Last Answer : Matte screens are still available on the 15 and 17 inch MacBook Pros. Not on the air and the Macbook has been discontinued.

Description : Due to which reason the latest models of different items are available within our reach ? -SST 10th

Last Answer : Due to globalisation, the latest models of digital camera, mobile phone, TV etc are available with us.

Description : What are some of the models of John Deere riding lawn mowers that are available?

Last Answer : JOHN DEERe makes offers several models in the riding mower line, including the lawn tractor lines (X300, X500, X700, 100 series) and the EZTrak Zero-Turn mowers. Visit the Deere website where ... well as the full array of attachments: http://www.deere.com/en_US/homeowners/riding_mowers/index.html

Description : What models of 2006 Hyundai are available?

Last Answer : 2006 Hyundai models include the Azera, Elantra, Accent, Getz, Sonata, Click, Coupe and Tiburon. You can find a complete history of Hyundai models at their official website, including a list of discontinued models.

Description : What Rolex Models are available that are powered by the sun energy?

Last Answer : None. There are no Rolex watches powered by sun or solar energy.

Description : Few Diesel Hybrid Vehicle Models are Available?

Last Answer : Few diesel hybrids are currently available, although Volkwagen plans on introducing two models in 2013. Manufacturers currently producing hybrid diesel vehicles include the new Volvo V60 that features a five-cylinder ... E series Blue TEC hybrid with a 150 KW diesel engine. and 15KW electric motor.

Description : Theories of elastic failure is the (a) Firstly analysis of the various failures (b) Secondly analysis of the strength of a material (c) Both (a) & (b) (d) None

Last Answer : (c) Both (a) & (b)

Description : A wholesaler sells printer cartridges. The minimum order quantity is 5. There is a 20% discount for orders of 100 or more printer cartridges. You have been asked to prepare test cases using various values for the number of printer cartridges ... A. 5, 6, 20 B. 4, 5, 80C. 4, 5, 99 D. 1, 20, 100

Last Answer : C. 0, 1,10,11, 50, 51, 75, 76,100,101

Description : State True or False. i) Master Development Plan basically is a schedule of various applications to be comprised. ii) It consists of start and finish dates of a system analysis, design implementation and maintenance activities. ... B) i-False, ii-True C) i-True, ii-False D) i-False, ii-False

Last Answer : A) i-True, ii-True

Description : Cost of capital is helpful in corporative analysis of various A. Source of Finance B. Source of Services C. Source of material D. Product

Last Answer : A. Source of Finance

Description : Ratio analysis is a study of relationship among various --------------- factors in a business a) Operational b) Official c) Financial d) Others

Last Answer : c) Financial

Description : Ratios of different items for various periods are calculated and compared a) Common size b) Comparative c) Trend analysis d) Ratio analysis

Last Answer : d) Ratio analysis

Description : ____________ is a graphical representation of the various activity and event relating to a project. A. Network analysis. B. Scheduling technique. C. Logical Model. D. Network Diagram

Last Answer : D. Network Diagram

Description : What is the different analysis available to analyze a transistor?

Last Answer : 1. AC analysis 2. DC analysis

Description : Ryan, a newly hired systems analyst/consultant, is about to begin a systems project.  Where will Ryan look first to locate the identifiable tasks he will record in his work plan?  a. ... . the project planning software available at the local bookstore  e. the website of his old college professor

Last Answer : c. the company training materials for the company methodology

Description : A process that involves continuously improving and detailing a plan as more detail become  available is termed as (A) project analysis (B) project enhancing (C) progressive deliberation (D) progressive elaboration

Last Answer : (D) progressive elaboration

Description : Which of the following is not required for any of the techniques of DNA fingerprinting available at present? (a) Restriction enzymes (b) DNA-DNA hybridisation (c) Polymerase chain reaction (d) Zinc finger analysis

Last Answer : (d) Zinc finger analysis

Description : What is the software available for performing piping stress analysis?

Last Answer : Answer: Caesar II, AutoPipe etc.

Description : What are the different Multidimensional analysis methods available in Business Objects?

Last Answer : There are 2 Multidimensional analysis methods available in BO, they are Slice and Dice Drill Down

Description : Which of the following control techniques available to the researcher controls for both known and unknown variables? a. Building the extraneous variable into the design b. Matching c. Random assignment d. Analysis of covariance

Last Answer : c. Random assignment

Description : The sales forecasting method that consists of making a product available to buyers in one or more locations and measuring purchases is A)a market test. B)the regression analysis. C)trend analysis. D)a survey. E)the Delphi technique.

Last Answer : A)a market test.

Description : _____________ is used to accomplish the project economically in the minimum available time with limited resources A. Project Scheduling. B. Network Analysis. C. Budget Analysis. D. Critical Planning.

Last Answer : A. Project Scheduling.

Description : How do I solve this discounted cash flow analysis?

Last Answer : answer:Saw? I’m confused. You only mentioned one saw, and that is the one used to make desks for the next 10 years. So, you use the one you have. What am I missing, Jellies?

Description : Choose the right sequence for Production Flow Analysis a.PFA Chart - Data Collection - Sortation of process plans b.Data collection - PFA chart - Sortation of process plans c.Sortation of process plans - Data collection - PFA chart d.Data collection - Sortation of process plans - PFA chart

Last Answer : d.Data collection - Sortation of process plans - PFA chart

Description : Which of the following is not the method of part family formation a.Visual inspection method b.Automatic product sorting c.Parts classification & coding d.Production flow analysis

Last Answer : b.Automatic product sorting

Description : The following is basically a material flow simplification technique a.A simple and visual method of cell design b.Family formation by classification and codification c.Cell formation using Production Flow Analysis d.All of the above

Last Answer : c.Cell formation using Production Flow Analysis

Description : Which of the following technique of grouping does not consider the design and shape aspect? a.A simple and visual method of cell design b.Family formation by classification and codification c.Cell formation using Production Flow Analysis d.All of the above

Last Answer : c.Cell formation using Production Flow Analysis

Description : In cell formation using production flow analysis, the following process will be left out of theanalysis a.Grinding b.Milling c.Drilling d.Gear cutting

Last Answer : d.Gear cutting