Sumários
LABORATORY AND COMPUTATIONAL WORK: acquisition of velocity time signals in a free turbulent jet; use of a 2d Navier-Stokes solver to solve a given problem
26 maio 2022, 17:00 • Carlos Frederico Neves Bettencourt da Silva
The experimental work took place in several session where each team of students acquired the instantaneous velocity signal at several jet locations using a hot wire anemometer (potential core, intermittent region, centerline (several locations). Each one of the teams of students latter used their data to compute and explain the evolution of several turbulent quantities; In the computational project the students were given a 2d Navier-Stokes solver and were assigned several problems to solve, requiring an analysis of the evolution of several unsteady flow phenomena. Both the laboratory and computational projects were supported through several sessions of discussion with the students. Both works required a report and the classifications were given after a discussion with each team of students.
(CANCELED LECTURE)
23 maio 2022, 17:00 • Carlos Frederico Neves Bettencourt da Silva
(THE LECTURE WAS CANCELED BECAUSE OF THE CELEBRATIONS FOR THE DAY OF TÉCNICO)
WALL BOUNDED FLOWS – Turbulent channel flow (Cont).
20 maio 2022, 17:00 • Carlos Frederico Neves Bettencourt da Silva
Description of state-of-the-art DNS of channel flows. Exercises.
LABORATORY AND COMPUTATIONAL WORK: acquisition of velocity time signals in a free turbulent jet; use of a 2d Navier-Stokes solver to solve a given problem
19 maio 2022, 17:00 • Carlos Frederico Neves Bettencourt da Silva
The experimental work took place in several session where each team of students acquired the instantaneous velocity signal at several jet locations using a hot wire anemometer (potential core, intermittent region, centerline (several locations). Each one of the teams of students latter used their data to compute and explain the evolution of several turbulent quantities; In the computational project the students were given a 2d Navier-Stokes solver and were assigned several problems to solve, requiring an analysis of the evolution of several unsteady flow phenomena. Both the laboratory and computational projects were supported through several sessions of discussion with the students. Both works required a report and the classifications were given after a discussion with each team of students.
WALL BOUNDED FLOWS – Turbulent channel flow (Cont).
16 maio 2022, 17:00 • Carlos Frederico Neves Bettencourt da Silva
The turbulent channel: The scaling of the mean velocity. The inner and outer layers. The viscous sublayer. The logarithmic layer. Friction law. Reynolds stresses and kinetic energy budgets in channel flow. Exercises.