![](https://lstatic.shangxueba.com/jiandati/pc/images/pc_jdt_tittleico.png)
the euler equations in the lagrangian coordinates read
The Euler equations in the Lagrangian coordinates read, and the Riemann variables are
. On
, ____ keeps constant. On
, ____ keeps constant.
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_panel_vip.png)
![](https://lstatic.shangxueba.com/jiandati/pc/images/no_answer.png)
The Euler equations in the Lagrangian coordinates read, and the Riemann variables are
. On
, ____ keeps constant. On
, ____ keeps constant.
A、"exception 1"
B、"exception 1", 后跟 "finally"
C、"exception 2", 后跟 "finally"
D、"exception 2"
A、ductile; brittle; fatigue
B、brittle; ductile; static
C、ductile; brittle; static
D、ductile; brittle; thermal
A、Mercaptosylase
B、Cholinesterase
C、Carboxylase
D、Phosphatase
For a polytropic gas described aswith initial data
, the Rankine-Hugoniot relation for a shock wave is ____. (
).
A、
B、
C、
D、
For the KdV equation, the traveling wave solutions show that a taller wave is thinner and runs faster.
For a polytropic gas described aswith initial data
, there always exists an intermediate state
connecting
and
with a shock wave or a rarefaction wave.
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