Mladen Bošnjaković

7 Questions 80 Answers 0 Followers

Questions related from Mladen Bošnjaković

Does Inflating layers need to be on both sides: on fluid and solid body?

Object of interest is fluid flow over tube in heat exchanger. Does Inflating layers need to be on both sides: on fluid side (air) and solid body (tube)? If yes, thus number of layer have to be...

15 January 2017 1,230 5 View

Reversibile flow on outlet in ansys Fluent?

I make calculation of my model of finned heat exchangers by Ansys Fluent. Model is somewhat complicated and have abut 5 millions elements and 8 inflation's layers. I chose k-epsilon method for...

01 January 1970 3,811 12 View

How to import correct model for ANSYS FLUENT?

I made a model of the heat exchanger in SolidWorks. The goal is to make numerical simulation using ANSYS FLUENT (ver 15.0). So far I have not used the said program is likely to be adapted designed...

01 January 1970 1,687 3 View

Is the situation with COVID-19 changed your opinion regarding the e-studying?

In many countries, gatherings of people are prohibited. Colleges and many other institutions do not operate in the usual mode but in a special one where most of the activities are done from...

01 January 1970 8,075 16 View

How to define the air properties in the heat exchanger calculation: as constant or temperature dependent?

I calculate Heat exchanger air-water, the air is heated. The air at the entrance is about 20 C. Ansys offers the ability to define air properties (density, thermal conductivity, dynamic viscosity...

01 January 1970 1,012 2 View

How to calculate hydraulic diameter (for finned heat exchanger)-debate?

Hydraulic diameter - dh - is the "characteristic length" used to calculate the dimensionless Reynolds Number and Nu number. Therefore it is vital for evalution of different types of heat...

01 January 1970 4,085 4 View

How to solve divergence problem?

I am trying to solve my model of heat exchanger with finned tubes in Fluent. First variant with air velocity of 1 m/s converged after cca 550 iteration in k-epsilon model. Now I choose velocity of...

01 January 1970 9,503 17 View