Fluid Dynamics II
Code
10486
Academic unit
Faculdade de Ciências e Tecnologia
Department
Departamento de Engenharia Mecânica e Industrial
Credits
6.0
Teacher in charge
João José Lopes de Carvalho, José Fernando de Almeida Dias
Weekly hours
5
Total hours
110
Teaching language
Português
Objectives
Learn new concepts and analytical techniques in specific domains of Fluid Mechanics such as: Boundary-layer theory; Potential Velocity and Compressible Flow.
To go deep in DFI already acquired knowledge.
Learn to manage the limited time at the lessons and on the moments of evaluation.
Prerequisites
To succeed is strongly recommended to dominate precedent curricular subjects on Mathematics and Physics, and Fluid Mechanics I.
Subject matter
1 - Boundary-layerFlows: Prandtl Boundary-layer theory. Von Kármán integral analysis. Exact solution of Blasius. Turbulent boundary-layer structure. Boundary-layer with longitudinal pressure gradient. Thwaites method for determining separation point.
2 - Velocity potential flows: Stream function and velocity potential. Elementary Plane-Flow Solutions. Magnus effect. Superposition of Plane-flow solutions. Kutta‑Joukowski Theorem. Airfoil theory. The boundary-Element Method.
3 - Compressive flows. Mach number. Subsonic, transonic, supersonic e hypersonic flows. Fundamental equations and relations involving Mach number. Isentropic flows inside ducts with variable area. Laval nozzle. Critical conditions. Normal shock waves. Oblique shock waves. Generalization of Ranquine and Hugoniot. Hydraulic Analogy. Froude number. Ackeret theory.
Bibliography
- White, F.M., “Fluid Mechanics ”, 4ª Ed. de McGraw-Hill, 1999.
- Oliveira, L. A. e Lopes, A. G., “Mecânica dos fluidos”, ETEP, 2006.
- Çengel, Y. A. e Cimbala, J. M., “Mecânica dos Fluidos - Fundamentos e Aplicações”, McGraw-Hill, 2007.
- John D. Anderson, Jr., “Modern Compressible Flow”, 3ª Ed. de McGraw-Hill, 2003.
Teaching method
The presentation of the subjects, using the board and audiovisual media, is made in classes theoretical and practices, progressing the matter in a continuousmethod. That is, immediately after presentation, practical problems are presented by the teacher and solved by the students, with the help of teacher, which aims to consolidate the newly taught concepts.
Evaluation method
Assessment is continuous, with component of theoretical and practical assessment made by three mini-tests, weighing 100% of the final grade and the final grade, NF,as a minimum of 9.5 for the dismissal of the examination.
Final grade is weighted by the following formula: NF = (MT1 + MT2 + MT3) / 3
In the case of examination, if EX <9.5 then the student reproves with NF = EX. Portions of the above expression are rounded to the tenth.
The mini-tests and examination are with consultation, limited by rules defined and published by the teacher. Violations are subject to the provisions of article 9 of the RAC.