How to insert the symbols shown below in LaTeX?

enter image description here

  • Welcome to TeX.SE! Please see here how to look up symbols. Once you have found the first one, it will be easy to add the subscripts and superscripts. – user121799 Feb 22 '18 at 19:06
  • Can you point to a source for the symbol? Is it universally used in your field? – egreg Feb 22 '18 at 19:10
  • This symbol is used in Two-phase flow field and this is a symbol on Ishii's book. – Longcong Wang Feb 22 '18 at 19:13
  • I have never seen this symbol for the viscous stress tensor. It's is usually just an S – user31729 Feb 22 '18 at 19:19
  • This symbol seems like some mad font scientist was melting \mathscr and \mathfrac together by accident :) – Ruben Feb 22 '18 at 19:49

Is this close enough?

$\textgoth{T}$ $\textgoth{T}^D$ $\textgoth{T}_{f}^{BI}$

$\StressTensor$  $\StressTensor^D$ $\StressTensor\!_{f}^{\,BI}$

enter image description here

EDIT: Just in case you want it even closer to your picture.

  • Thx so much, I think this is good enough. – Longcong Wang Feb 22 '18 at 19:28
  • When I try this, 'Font ygoth at 600 not found' error occured – Longcong Wang Feb 22 '18 at 19:32
  • @LongcongWang Which TeX installation are you working with? Does this answer help? – user121799 Feb 22 '18 at 19:34
  • I use TeXworks with MiKTex – Longcong Wang Feb 22 '18 at 19:37
  • @LongcongWang Does this help? (Of course, you need to replace ccicons by yfonts.) And you may ask a separate question because some others know this stuff much better than me and can give you more competent advice. – user121799 Feb 22 '18 at 19:38

Another try is the Dobkin Script font (available here for instance as .ttf - hence the example below needs to be compiled with XeLaTeX or LuaLaTeX):


% arara: xelatex
  \newfontfamily{\dobscr}{Dobkin Script}




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