Main public logs

Combined display of all available logs of dada-engine.org. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 09:50, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/528/fr (Created page with "À masse constante, une transformation parfaitement isobare nécessite :")
• 09:49, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/527/fr (Created page with "<math> P= \frac{M_{\mathcal C}R} {\displaystyle\sum_{j\in\mathcal C}V_j/T_j}. </math>")
• 09:49, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/526/fr (Created page with "et donc :")
• 09:49, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/525/fr (Created page with "<math> M_{\mathcal C} = \frac{P}{R} \sum_{j\in\mathcal C}\frac{V_j}{T_j}, </math>")
• 09:49, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/524/fr (Created page with "L'égalisation de pression entre des volumes communicants à un instant donné n'implique pas, en soi, que leur pression commune reste constante tout au long de l'échange. Soit <math display="inline">\mathcal C</math> un ensemble fermé de volumes de gaz communicants qui sont approximativement à la même pression <math display="inline">P</math>. Pour un gaz parfait :")
• 09:47, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/523/fr (Created page with "Les phases d'échange tendent donc idéalement vers un fonctionnement quasi-isobare. Une machine réelle de dimensions finies conserve une différence de pression finie car un débit fini doit traverser les résistances hydrauliques.")
• 09:44, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/522/fr (Created page with "<math> P_u-P_d\to0. </math>")
• 09:44, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/521/fr (Created page with "La limite réversible est donc :")
• 09:44, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/520/fr (Created page with "<math> \Delta s_{\mathrm{hyd}} = R\ln\left(\frac{P_u}{P_d}\right)>0 \qquad\text{for}\qquad P_u>P_d. </math>")
• 09:44, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/519/fr (Created page with "et donc :")
• 09:43, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/518/fr (Created page with "<math> h_u=h_d \quad\Rightarrow\quad T_u=T_d, </math>")
• 09:43, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/517/fr (Created page with "Pour la contribution des pertes hydrauliques idéalisée localement comme un processus d'étranglement adiabatique et isenthalpique d'un gaz parfait calorifiquement parfait :")
• 09:40, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/516/fr (Created page with "Lors d'une phase d'échange, le gaz est transféré d'un cylindre à l'autre à travers un échangeur thermique. La résistance hydraulique exige une différence de pression finie pour produire un débit massique fini. Cette différence de pression est intrinsèquement irréversible.")
• 09:27, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/515/fr (Created page with "==== 6.1.2 Phases d'échange ====")
• 09:27, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/514/fr (Created page with "Dans un cycle de référence réversible idéal, la compression et la détente peuvent être considérées comme adiabatiques et réversibles. Cette condition n'est pas imposée à la machine réelle. Les échangeurs restent thermiquement couplés au gaz, la redistribution de masse peut se poursuivre et les clapets ne sont pas nécessairement fermés pendant toute la phase de compression ou de détente.")
• 09:21, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/513/fr (Created page with "Lorsque les pressions dans les deux cylindres sont du même ordre de grandeur, les contributions des deux pistons s’additionnent lors d’une détente simultanée et participent toutes deux au travail nécessaire lors d’une compression simultanée. Cela permet aux volumes balayés des deux cylindres de contribuer aux phases du cycle au cours desquelles la pression varie.")
• 09:16, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/512/fr (Created page with "<math> \dot W=P_S\dot V_S+P_L\dot V_L. </math>")
• 09:16, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/511/fr (Created page with "Le travail instantané fourni par le gaz est :")
• 09:16, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/510/fr (Created page with "Compression et la détente sont principalement des phases de variation de pression. Dans la cinématique voulue, les volumes des deux cylindres peuvent diminuer simultanément lors de la compression et augmenter simultanément lors de la détente.")
• 09:14, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/509/fr (Created page with "==== 6.1.1 Compression et expansion ====")
• 09:14, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/508/fr (Created page with "=== 6.1 Justification thermodynamique des quatre phases ===")
• 09:13, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/507/fr (Created page with "La numérotation ci-dessous suit le sens de réfrigération <math display="inline">\omega>0</math>. Le fonctionnement moteur utilise la même machine physique avec un sens de rotation inversé et est décrit au §6.6.")
• 09:12, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/506/fr (Created page with "Le cycle est décrit par quatre régimes cinématiques et thermodynamiques successifs : compression, transfert à travers <math display="inline">H_o</math> , expansion et transfert à travers <math display="inline">H_i</math>. Ces phases décrivent l'évolution dominante de la machine ; elles ne sont pas définies par l'état des clapets. L'ouverture et la fermeture des clapets restent déterminées indépendamment par les différences de pression instantanées et peuv...")
• 09:10, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/505/fr (Created page with "== 6. Cycle thermodynamique complet ==")
• 09:09, 22 September 2026 E.dada talk contribs marked translation Translations:Thermodynamic and Mechanical Study/104/fr as no longer outdated
• 09:08, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/504/fr (Created page with "Le lieu où le flux externe traverse la frontière de l'ensemble connecté modifie les masses et températures locales, mais pas l'équation de pressions cumulées une fois que l'ensemble <math display="inline">\mathcal C</math>, le flux d'enthalpie aux limites, chaleur totale et débits volumiques sont spécifiés.")
• 08:49, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/503/fr (Created page with "<math> \dot M_{\mathcal C} = -\dot m_{\mathrm{ext}}. </math>")
• 08:49, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/502/fr (Created page with "Avec :")
• 08:49, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/501/fr (Created page with "<math> \dot P_{\mathcal C} = \frac{ -\gamma RT_{\mathrm{out}}\dot m_{\mathrm{ext}} + (\gamma-1)\dot Q_{\mathcal C} - \gamma P_{\mathcal C}\dot V_{\mathcal C} } {V_{\mathcal C}}, </math>")
• 08:49, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/500/fr (Created page with "Si à l’inverse l'ensemble fournit un seul flux de sortie externe <math display="inline">\dot m_{\mathrm{ext}}>0</math> à partir d'un volume limite à la température <math display="inline">T_{\mathrm{out}}</math> :")
• 08:48, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/499/fr (Created page with "<math> \dot M_{\mathcal C} = \dot m_{\mathrm{ext}}. </math>")
• 08:48, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/498/fr (Created page with "Avec :")
• 08:48, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/497/fr (Created page with "<math> \dot P_{\mathcal C} = \frac{ \gamma RT_{\mathrm{ext}}\dot m_{\mathrm{ext}} + (\gamma-1)\dot Q_{\mathcal C} - \gamma P_{\mathcal C}\dot V_{\mathcal C} } {V_{\mathcal C}}, </math>")
• 08:48, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/496/fr (Created page with "Si un ensemble connecté à pression quasi-égale reçoit un seul flux externe <math display="inline">\dot m_{\mathrm{ext}}>0</math> à température amont <math display="inline">T_{\mathrm{ext}}</math> :")
• 08:47, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/495/fr (Created page with "=== 4.5 Cas particuliers de flux externe unique ===")
• 08:47, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/494/fr (Created page with "Cette simplification ne doit pas être utilisée lorsqu'un flux externe entre ou sort directement de l'échangeur ; dans ce cas, les bilans généraux des §4.1 et §4.3 s'appliquent.")
• 08:42, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/493/fr (Created page with "<math> \dot T_{HX} = \frac{T_{HX}}P\dot P - \frac{RT_{HX}^2}{PV_{HX}} \dot m_{\mathrm{int}}. </math>")
• 08:42, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/492/fr (Created page with "La température de l'échangeur thermique répond alors à :")
• 08:41, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/491/fr (Created page with "<math> \dot m_{\mathrm{int}} = \begin{cases} \dfrac{N}{\gamma RT_{\mathrm{cyl}}}, & N\ge0 \quad(\mathrm{cyl}\to HX),\\[6pt] \dfrac{N}{\gamma RT_{HX}}, & N<0 \quad(HX\to\mathrm{cyl}). \end{cases} </math>")
• 08:41, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/490/fr (Created page with "Le débit interne est :")
• 08:41, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/489/fr (Created page with "<math> N= V_{HX}\dot P + (\gamma-1)(UA)_{HX} (T_{HX}-T_{HX,\mathrm{res}}). </math>")
• 08:41, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/488/fr (Created page with "Soit :")
• 08:41, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/487/fr (Created page with "Dans le cas particulier d'un cylindre et d'un échangeur thermique connectés à pression quasi uniforme, sans flux entrant ou sortant directement de l'échangeur, définissons le débit massique interne du cylindre vers l'échangeur comme positif.")
• 08:39, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/486/fr (Created page with "=== 4.4 Cas particulier à deux volumes cylindre-échangeur ===")
• 08:38, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/485/fr (Created page with "Ces équations déterminent la distribution locale de la masse et l'évolution de la température une fois les débits hydrauliques connus.")
• 08:37, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/484/fr (Created page with "<math> \frac{V_j}{\gamma-1}\dot P_{\mathcal C} = \dot Q_j + \sum_{\mathrm{in}}\dot m C_pT_u - \sum_{\mathrm{out}}\dot m C_pT_j. </math>")
• 08:37, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/483/fr (Created page with "Son bilan énergétique peut s'écrire de manière équivalente :")
• 08:36, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/482/fr (Created page with "Le débit massique de l'échangeur <math display="inline">\dot m_j</math> est la somme algébrique des débits réels à travers toutes les liaisons qui y sont connectées. Cette relation est indépendante de la position du clapet, en amont ou en aval de l'échangeur.")
• 08:34, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/481/fr (Created page with "<math> \dot T_j = \frac{T_j}{P_{\mathcal C}}\dot P_{\mathcal C} - \frac{RT_j^2}{P_{\mathcal C}V_j}\dot m_j . </math>")
• 08:34, 22 September 2026 E.dada talk contribs created page Translations:Thermodynamic and Mechanical Study/480/fr (Created page with "D'où :")