Table 2 The maximum values of stream function (\({\uppsi }_{\text{max}}\)), the values of steady-state stream function (\({\uppsi }_{\text{steady}}\)), the maximum value of von Misses stress (\({\upsigma }_{\text{max}}\)), the values of steady-state von Mises stress \(\left({\upsigma }_{\text{steady}}\right)\), and the total Nusselt number for different cases (\({\text{Nu}}_{\text{total}}\)).

From: Thermo-mechanical analysis of free convection in an octagonal cavity with adjustable active walls and flexible separator

Cases

\({\uppsi }_{\text{max}}\)

\({\uppsi }_{\text{steady}}\)

\({\upsigma }_{\text{max}}\)

\({\upsigma }_{\text{steady}}\)

\({\text{Nu}}_{\text{total}}\)

1

− 177.36

− 18.846

1.4869E11

1.2861E11

10.519

2

− 177.36

− 29.575

1.7002E11

1.7002E11

13.834

3

− 177.36

− 37.141

1.6673E11

1.6645E11

14.303

4

− 125.13

− 16.062

1.4174E11

1.3110E11

12.484

5

− 125.13

− 29.580

1.7284E11

1.7002E11

13.820

6

− 51.467

− 18.844

1.2857E11

1.2857E11

9.9678

7

− 159.65

− 19.430

1.2800E11

1.1885E11

12.766

8

− 159.65

− 30.856

1.5629E11

1.5629E11

15.567

9

− 159.65

− 48.437

1.4150E11

1.4048E11

16.076

10

− 133.45

− 16.775

1.2695E11

1.2625E11

12.928

11

− 133.45

− 30.861

1.5975E11

1.5632E11

15.437

12

− 54.754

− 19.428

1.1885E11

1.1885E11

12.190

13

− 140.59

− 25.649

1.3207E11

1.3207E11

13.350

14

− 144.87

1.4620E11

13.065

15

− 144.86

1.4225E11

12.788

16

− 144.91

9.7411E10

11.582

17

− 173.59

− 17.766

1.6865E11

1.4332E11

10.581

18

− 173.59

− 28.619

1.8955E11

1.8955E11

13.721

19

− 173.59

− 35.703

1.8678E11

1.8619E11

14.140

20

− 173.59

1.7703E11

12.969

21

− 100.15

− 15.483

1.7134E11

1.4783E11

12.309

22

− 100.16

− 28.617

1.9449E11

1.8956E11

13.671

23

− 100.16

1.8297E11

14.188

24

− 36.097

− 17.749

1.4337E11

1.4337E11

9.9211

25

− 36.182

− 25.664

1.3194E11

1.3153E11

12.060