<meta http-equiv="Content-Type" content="text/html; charset=GB18030"><p class="MsoNormal" align="left" style="text-align:left;mso-char-indent-count:
0;line-height:150%;mso-pagination:widow-orphan"><span style="text-indent: 0cm;">Dear Flash developer, hello</span></p><p class="MsoNormal" align="left" style="text-align:left;mso-char-indent-count:
0;line-height:150%;mso-pagination:widow-orphan"><span style="text-indent: 0cm;">I have some questions about the Spitzer resistivity
used in Flash, and I sincerely hope to receive your answers.</span></p>
<p class="MsoNormal" style="text-indent:0cm;mso-char-indent-count:0;line-height:
normal"><span lang="EN-US">1. Should Spitzer resistivity be applicable to
completely ionized substances? So, is it unreasonable to study a metal that is
driven from room temperature to a fully ionized state (such as in zpinch)? After
all, the temperature in the early stage was too low, and the ionization level
was very low.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:0cm;mso-char-indent-count:0;line-height:
normal"><span lang="EN-US">2. The Spitzer resistivity expression I found is:
η=1.03 × e − 4 Zbar ln ll/tele_eV * * 1.5 (ohm * m)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:0cm;mso-char-indent-count:0;line-height:
normal"><span lang="EN-US">And you provided two resistors here, the original text
in the program is as follows:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:0cm;mso-char-indent-count:0;line-height:
normal"><span lang="EN-US">resPerpLoc = 8.21876126127e5*zbar*ll/tele_eV**1.5 !! In CGS -- Here tele has to be in eV<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:0cm;mso-char-indent-count:0;line-height:
normal"><span lang="EN-US">resPar = resPerpLoc/1.96<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:0cm;mso-char-indent-count:0;line-height:
normal"><span lang="EN-US">And there is the following annotation: This formula is
only valid when the magnetic field is strong (and only for hydrogen).<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:0cm;mso-char-indent-count:0;line-height:
normal"><span lang="EN-US">2.1. Are the two resistivity values you provided the
components of vertical current and horizontal current resistivity? If I want to
calculate the </span><span style="font-family: "Times New Roman", serif; font-size: 10pt;"> </span><span lang="EN-US" style="font-family: "Times New Roman", serif; font-size: 10pt;">Isotropic</span><span style="text-indent: 0cm;"> aluminum , should I only consider resPar?
When the unit system is </span>converted<span style="text-indent: 0cm;">, is the conversion parameter in the flash
documentation also the ratio between the parameter to be converted and resPar?</span></p>
<p class="MsoNormal" style="text-indent:0cm;mso-char-indent-count:0;line-height:
normal"><span lang="EN-US">2.2. As mentioned above, can the resistivity formula
you provided only calculate hydrogen? Are the coefficients in front of the
Spitzer resistivity different for different substances?<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:0cm;mso-char-indent-count:0;line-height:
normal"><span lang="EN-US">2.3. The issue of unit system conversion. What I found
is an MKS unit system, while the one provided in Flash should be in the form of
UnitSystem="none", right? How does the coefficient not match the
parameters provided in the documentation? not be 4</span><span style="color: rgb(51, 51, 51); font-family: Arial, sans-serif; font-size: 13px;">π</span><span style="text-indent: 0cm;">/c^2,,or 1/</span><span style="color: rgb(51, 51, 51); font-family: Arial, sans-serif; font-size: 13px;">μ0???</span></p>
<p class="MsoNormal" style="text-indent:20.0pt"><br><br></p>