Randvärdesproblem, värmeledning Flashcards by Johanna Nylander | Brainscape

Q

variabel källtäthet inre värmekällor? enhet?

A

f(x) [J/m^3s]

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

variabel temperatur? enhet?

A

u(x) [k]

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

variabel värmeledningskoefficient? enhet?

A

a(x) [J/mKs]

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

variabel värmeflödestäthet? enhet?

A

j(x)=-a(x)*Du(x) [J/m^2s]

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

variabel omgivande temperatur? enhet?

A

uL [K]

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

variabel temperatur på insidan av ytan? enhet?

A

u(L) [K]

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

variabel värmeöverföringskoefficient? enhet?

A

kL [J/m^2Ks]

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Differentialekvation värmeledning?

A

D(-a(x)Du(x))=f(x) , x tillhör I=(0,L)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Randvillkor värmeledningsproblem?

A

Analysera J(x) och u(x) i x=0 och x=L

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

variabel flödestäthet för värmekällor på randen? enhet?

A

g(x) [J/m^2]

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Robins randvillkor?

A

aD(N)u+k(u-uA)=g på S

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

vad menas med S i detta sammanhang?

A

Randen

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Newmanns randviillkor?

A

aD(N)u=g på S

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Newmanns randvillkor om g=0?

A

D(N)*u=0 på S

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Dirichlets randvillkor?

A

u=uA på S.

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Vad menas med D i detta sammanhang?

A

kroppen