1.0CHARRON Yveshttps://yvcharron.comadmin7014https://yvcharron.com/index.php/author/admin7014/rich600338<blockquote class="wp-embedded-content" data-secret="Na1mu9lgcG"><a href="https://yvcharron.com/index.php/compliant-and-porous-coatings/">Compliant and porous coatings</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://yvcharron.com/index.php/compliant-and-porous-coatings/embed/#?secret=Na1mu9lgcG" width="600" height="338" title="“Compliant and porous coatings” — CHARRON Yves" data-secret="Na1mu9lgcG" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://yvcharron.com/wp-includes/js/wp-embed.min.js </script> There are several mechanisms for reducing turbulence drag. Injection of viscoelastic particles is used for liquids. Other mechanisms are related to wall features. One of them is the use of structured surfaces. Other mechanisms are based on coating compliance and porosity - permeabilityhttp://yvcharron.com/wp-content/uploads/2021/01/16-0.jpg534386