Which of these statements is true?

A The standard k-ε model and the RNG k-ε model are realizable
B Neither the standard k-ε model nor the RNG k-ε model is realizable
C The standard k-ε model is realizable but not the RNG k-ε model
D The RNG k-ε model is realizable but not the standard k-ε model

Correct Answer: Neither the standard k-ε model nor the RNG k-ε model is realizable

Both the standard k-ε model and the RNG k-ε model are not realizable. They do not satisfy the mathematical condition of realizability. Only the realizable k-ε model is realizable.
Bissoy MCQ
#Computational Fluid Dynamics #Turbulence Modelling #Realizable K Epsilon

Related Questions

'Some pencils are pens' and 'all pens are erasers' . If both these statements are true then which of the following statement (s) os /are definitely true? I. All pencils are erasers II. Some erasers are pencils III. All erasers are pencils
A Only I
B both I and III
C Both I and II
D Only II
A is the brother of B. B is the brother of C. D is the father of A. Based on these statements, which of the following statements cannot be definitely true ?
A B is the brother of A
B B is the son of D
C A is the brother of C
D C is the brother of A
E A,B and C are D's children
Most stuffed toys are stuffed with industrial cotton. There are stuffed bears and stuffed tigers.Some chairs are stuffed with industrial cotton. If the first three statements are true then which of the following statements must also be true?
A I only
B II only
C II and III only
D I,II and III
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . A fly crawls around the outside of a circle once.A second fly crawls around the outside of a square once.Which fly travels further ? (1) The diagonal of the square is equal to the diagonal of the circle.(2) The fly crawling around the circle took more time to complete has journey than the fly cawing around the square.
A A
B B
C C
D D
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . What is the volume of rectangular box S? (1) The total surface of S is 22.(2) The rectangular box S is a cube
A A
B B
C C
D D
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient .How many minutes are there is time period T? (1) Time period T extends from 12.00 midnight to 12.00 noon.(2) Time period T is 2 hours and 180 seconds long.
A A
B B
C C
D D
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient .Car X traveled from city A to city B in 30 minutes.What was the average speed of car X? (1) Half the distance of the trip was covered at 50 miles per hour, and the other half of the distance was covered at 60 miles per hour.(2) Car X traveled 30 miles during the trip.
A A
B B
C C
D D
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . A worker is hired for six days.He is paid Tk.2 more for each day of work than he was paid for the preceding day of work.How much was he paid for the day of work?
A A
B B
C C
D D
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . Is K a multiple of 6? (1)K is a multiple of 3. (2) K is a multiple of 12.
A A
B B
C C
D D
Karim is taller than Mina. zafar is taller than Rima. Rima is shorter than Bela. Mina and Bela are of the same height. If these are true, which of the following conditions must also be true?
A Zafar is taller than Bela
B zafar is taller than Karim
C Mina is shorter than Zafar
D Karim is taller than Rima

Next steps