## 熱エネルギー工学

Course Title

Term

コード

コマ

Instructor

Thermal Energy Engineering
P120190001 2 1 後期授業 専門科目 TMMEE6223-J1 水３ B4-東K-204 須賀　一彦

B4棟E232室　月曜日３コマ目

#### 授業目標

In order to design and control machines related to thermal energy, it is necessary to analyze and understand the flows of thermal fluids inside/outside the machines. Thus, this course focuses on the methods of numerically analyzing thermal fluid flows, particularly in turbulent flow regimes. The detailed theories, practices and their backgrounds are lectured.
The goal of the students is to understand the fundamental theory and tactics of turbulence modeling.

None

#### 参考書

Mathematical Models of Turbulence (by Launder & Spalding, Academic Press)
Boundary Layer Theory (8th ed., by Schlichting & Gersten, Springer), etc.

#### 授業時間外の学習（準備学習等について）

It is helpful for the lectures to read and study the books listed above.

#### 授業の概要

The course includes,
1:Introduction of computer simulation, 2:Nature of turbulent flows, 3:Reynolds averaging, 4: Filtering & large eddy simulations, 5:Eddy viscosity concept, 6:Eddy viscosity turbulence models, 7:One-equation turbulence models, 8:k-e two-equation turbulence models, 9:Low Re k-e & k-w models, 10:Nonlinear eddy viscosity models, 11:Wall-functions, 12: Heat flux models, 13:Second moment closures, 14:Algebraic second moment closures, 15:Other topics, Final report/test. The details are listed below.

#### 授業計画

第１回 準備学習等 Introduction of development of digital computers, computer aided engineering and computer sikumation of turbulence N/A Nature of turnulent flow and mathematical treatment of turbulence: Reynolds averaging, filtering homework assigned at the previous class Eddy viscosity concept, the mixing length model homework assigned at the previous class One equation eddy viscosity models homework assigned at the previous class Derivation of the transport equation of the turbulent kinetic energy: k, and its modelling homework assigned at the previous class One-equation low-Reynolds number model and the analytical wall function homework assigned at the previous class k-e eddy viscosity model and the dissipation rate: e (epsilon) , equation homework assigned at the previous class Modelling the e-equation homework assigned at the previous class Low Reynolds number k-e model homework assigned at the previous class k-w (omega) model and SST k-w model homework assigned at the previous class RNG k-e model and nonlinear k-e model homework assigned at the previous class Turbulent heat flux models and wall functions homework assigned at the previous class Standard Reynolds stress model homework assigned at the previous class Advanced Reynolds stress model: TCL model homework assigned at the previous class Algebraic stress model and V2F model homework assigned at the previous class Second moment closure for the scalar fields homework assigned at the previous class

#### 成績評価

The final test is for evaluating the level of the student's learning achievement.
Evaluation of the levels is made by the Final Test (70%)
and Assignments (30%).
By the total scores obtained, the final letter grades will be assigned as follows:
A+= 90-100 %
A= 80-89 %
B = 70-79 %
C= 60-69 %
D = 59 % and below (fails to obtain the credits)