... more general conformal transformation that gave a family of aerofoils with trailing edges of finite angle Aerofoil theory based on conformal transformation became a practical tool for aerodynamic ... Moreover, all the * see footnote on page 161 Trang 7170 Aerodynamics for Engineering Students iy z plane 0 U Fig 4.8 Zhukovsky transformation, of the flow around a circular cylinder with circulation, ... aerofoil shape required for specified aerofoil characteristics This made the theory a practical tool for aerodynamic design However, as remarked above, the use of conformal transformation is restricted
Ngày tải lên: 08/08/2014, 11:21
... instruments: To collect data for the study, the questionnaires were designed to survey directly for 60 students and 10 teachers in the Faculty of Electrical and Electronics Engineering at Hung Yen ... tool for research, prompting the researcher to select them as a primary instrument for data collection These questionnaires facilitate the gathering of information from study subjects and allow for ... constraints for the graduation paper, the study focused on second-year non-English major students at UTEHY's Faculty of Electrical and Electronics Engineering The research involved 175 students,
Ngày tải lên: 27/12/2023, 13:50
An investigation into the job orientation in english specific texts for mechanical engineering for 2nd year students at vinh technical pedagogical university
... English texts for Mechanical engineering At VTPU English for Mechanical engineering is a compulsory subject in training program for teachers and higher technicians at VTPU It is designed for students ... learning and teaching ESP for Mechanical Engineering at VTPU 2.1 Questionnaires for students 2.1.1 The analytical frame work of the questionnaires for the students The students’ questionnaires ... the textbook 2.1.2 The students’ motivation for learning ESP for Mechanical Engineering The result of Question 1 in the students’ questionnaire shows that most students (108 students-90%) thought
Ngày tải lên: 29/01/2014, 14:35
CAD tools for aesthetic engineering doc
... and therefore new parameters for optimization In this general approach, we can vary the methods for calculating the actual optimization moves, trading off accuracy for speed As a baseline for comparing ... easily be targeted at various different interchange file formats For instance, the simple, verbose, inefficient, but widely available STL-format is accepted by most rapid prototyping machines and ... and shapes Creating maximally satisfactory forms for mathematical models or for geometric sculptures poses quite different requirements and constraints for any CAD tool than developing an optimized
Ngày tải lên: 07/03/2014, 17:20
Academic Writing for Graduate Students doc
... Bechor for "Navigation." Jo-Ching Chen for her critique of "ESL Spelling Errors." Horace H Rackham School of Graduate Studies, University of Michigan, for "Years to Doctorate for ... Doctorate for Doctoral Programs at University of Michigan, AnnArbor, for Students Entering in 1981-83." Kazuo Ichijo for "Speed and Innovation in Cross-functional Teams."IEEE for "Causes ... American for source material for summary based on information from "Madagascar's Lemurs," by Ian Tattersall, Scientific American, Janu-ary 1993 Trang 2vi / AcknowledgmentsKoji Suzuki for
Ngày tải lên: 11/03/2014, 12:20
ENGLISH FOR AUTOMOBILE ENGINEERING-UNIT 8 doc
... 1ENGLISH FOR AUTOMOBLE ENGINEERING LECTURER: LANG VAN THANG FACUTY OF MECHANICAL ENGINEERING HO CHI MINH UNIVERSITY OF INDUSTRY EMAIL: thang.langvan@hotmail.com SUBJECTS Trang 2UNIT 8ENGLISH FOR ... a great demand for varied types of automobile products, vehicles and engines INTRODUCTION Trang 4There is also a great demand for trained and experienced person in this industry for diagnosing ... into a rotating force that turns the wheels 6 Power brakes use pressure from the engine, requiring less effort by the driver 7 All wheel drive is an option the driver selects for certain bad
Ngày tải lên: 22/03/2014, 23:20
Title: A History of Art for Beginners and Students: Painting, Sculpture, Architecture Painting doc
... the misfortunes which he cannot account for; the old pedagogue, to whom the youngest boy has run for protection and, indeed, all demand our sympathy for their grief and our admiration for their ... and serve as studies for the artists of all time Thisfigure of Theseus is wonderful for the majesty and grace of its attitude, for perfection of its anatomical accuracy, and for the appearance ... the gods are sometimes represented as depending upon mortals for information, and all thesereligious views tended to make the human form far more noble to the Greek than it can be to the Christian,with
Ngày tải lên: 31/03/2014, 21:20
NX5 FOR ENGINEERING DESIGN doc
... customers’ demands Once the relevant design information is gathered, design specifications are formulated Next, a feasibility study is done with relevant design information Detailed design and analyses ... graphics display, and information window You can set the number of decimal places (precision) that the system uses for both input text fields and data displayed in the information window You can ... We first released the Tutorial for Unigraphics 18 and later updated for NX2 followed by the update for NX3 This write-up further updates to NX5 Our previous efforts to prepare the NX self-guiding
Ngày tải lên: 08/07/2014, 09:20
Control Engineering - A guide for beginners - Chapter 6 doc
... certain limits. For example, opening a fur- nace door leads to a fall in temperature of 30°C. Instead of first waiting for the process to respond to this disturbance and then for the controller ... deviation and the time derivative of the process variable, as well as information on whether the controller should operate for setpoint or disturbance response The output manipulating variable ... controller; hence P or PD controllers are normally used for this application, or also, less frequently, a PI controller. The master controller, set for setpoint response, is usually a PI or PID controller.
Ngày tải lên: 07/08/2014, 15:20
Aerodynamics for engineering students - part 2 pptx
... difference can therefore be Trang 2468 Aerodynamics for Engineering Students Therefore, true air speed = M a = 0.728 x 340.3 248 m s-' = 89 1 km h-' In this example, ~7 = 1 and therefore there is ... (dp/ds)Ss Around Trang 1458 Aerodynamics for Engineering Students t W Fig 2.4 The stream tube and element for the momentum equation w Fig 2.5 The forces on the element the curved surface ... theoretically as shown in Fig 1.29 Line (a) for which dCM/dCL fi - is for CM measured about the leading edge Line (c), for which the slope is zero, is for the case where CM is measured about the
Ngày tải lên: 08/08/2014, 11:21
Aerodynamics for engineering students - part 3 pot
... equations for axisymmetric jlow (a) for the flow field and coordinate system of Ex 1 show that the Euler equations (inviscid momentum equations) take the form: 5 The Navier-Stokes equations for two-dimensional ... equipotential Q = 0 for the isolated source and the isolated sink, but not for the combination Trang 23Therefore m x 2 + y 2 + c 2 - 2 x c 47r x2 + y2 + c2 + 2xc + = - l n Rearranging Therefore, the ... And another name for irrotational flow is potentialflow For such flows the equations of motion reduce to a single partial differential equa- tion, the famous Laplace equation, for velocity potential
Ngày tải lên: 08/08/2014, 11:21
Aerodynamics for engineering students - part 5 pot
... approximation, the C, distributions obtained for symmetrical aerofoils can be used for the wing sections For complete- ness this result is demonstrated formally immediately below However, if this ... method is certainly suitable for wings with a simple planform shape, e.g a rectangular wing Some wing shapes for which it is not at all suitable are shown in Fig 5.22 Thus for the general case an ... the terms, for example where r = d ( x -XI)' + (z - ~ 1 ) ~ In this way, the trigonometric expressions given above can be rewritten as Trang 7236 Aerodynamics for Engineering Students (5.27)
Ngày tải lên: 08/08/2014, 11:21
Aerodynamics for engineering students - part 6 potx
... and for air has values between 1 and 0.378 The velocity ratio is the inverse of the density ratio, since by continuity u2/u1 = p 1 / p 2 Therefore, directly from Eqns (6.45) and (6.45a): or for ... 6.16 Algebraic expressions for the wavelets in terms of the flow velocity be obtained by further manipulation of Eqn (6.61) which, for convenience, is recalled in the form: Introduce the velocity ... position under sonic conditions q5, and velocity ratio q/c for a given Mach number may be computed once and for all and used in tabular form thereafter Numerous tables of these values exist but
Ngày tải lên: 08/08/2014, 11:21
Aerodynamics for engineering students - part 7 docx
... integration of other products vanishes for the same reason as given above for the development leading to Eqn (6.160) Thus (6.161) Now 2 f ~ i d x = 4a2c Trang 5and for a particular section Moment coefficient ... as before: 2 f : & ; - = 4 a z C For the given geometry i.e one equal contribution from each of four flat surfaces, and Le one equal contribution from each of four flat surfaces Therefore ... giving relatively simple for- mulae for the aerodynamic characteristics of aerofoils However, as shown below in Example 6.13 the exact pressure distribution can be readily found for a double-wedge
Ngày tải lên: 08/08/2014, 11:21
Aerodynamics for engineering students - part 8 pps
... relationship for the seventh-root profile The total skin-friction force coefficient CF for one side of the plate of length L may be found by adding the skin-friction force per unit width for the ... is necessary to formulate semi-empirical approaches for modelling the Reynolds shear stress before one can begin the process of solving Eqns (7.108a,b) The momentum integral form of the boundary-layer ... plotted in Fig 7.40 This quantity is important for engineering calculations of turbulent boundary layers Note that the form adopted in Eqn (7.112) for the near-wall region according to the mixing-length
Ngày tải lên: 08/08/2014, 11:21
Aerodynamics for engineering students - part 9 ppt
... labelled convex, m I4, say; for that labelled linear, m = 1; and for that labelled concave, m N 1/4 One would not normally design a wing for which the flow separates before the trailing edge is ... over the *The information for this section comes from two main sources, namely, R.G Dominy (1992) ‘Aerodynamics of Grand Prix Cars’, Proc I Mech E., Parr D: J of Automobile Engineering, 206, ... pressure can be sustained before sonic conditions are reached, resulting in a pronounced peaky pressure distribution For high subsonic Mach numbers, on the * B.S Stratford (1959) The prediction
Ngày tải lên: 08/08/2014, 11:21
Aerodynamics for engineering students - part 10 docx
... performance a pitch suitable for low-speed fight and take-off is liable to have a poor performance at high forward speeds, and vice versa This was the one factor that limited aircraft performance ... fine pitch for take-off and climb, whereas the other gives a coarse pitch for cruising and high-speed flight Consider Fig 9.6 which shows typical variations of efficiency 7 with J for (a) a ... varied at will between these two values the overall performance J Fig 9.6 Efficiency for a two-pitch airscrew Trang 5J Fig 9.7 Efficiency for a constant-speed airscrew attainable is as given
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 1 pps
... book is intended for students studying for degrees, Higher National Diplomas and Higher National Certificates in aeronautical engineering and will be found of value to those students in related ... experience of teaching aircraft structures I have felt the need for a text- book written specifically for students of aeronautical engineering Although there have been a number of excellent books ... Trang 2Aircraft Structures for engineering students Trang 3To The Memory of My Father Trang 4OXFORD AMSTERDAM BOSTON LONDON NEWYORK PARIS Trang 5Butterworth-Heinemann
Ngày tải lên: 08/08/2014, 11:21