From ad36c9b79098134b6c13629a3b8796919dc23394 Mon Sep 17 00:00:00 2001 From: Stein Date: Mon, 26 Aug 2024 15:26:36 -0600 Subject: [PATCH] Drag coefficient and cost updates to wire and HMPE in MoorProps_default - Note that I do also have a small update for polyester cost, but won't change it yet until we know when we can produce another release of MoorPy --- moorpy/MoorProps_default.yaml | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/moorpy/MoorProps_default.yaml b/moorpy/MoorProps_default.yaml index e0796ca..4215107 100644 --- a/moorpy/MoorProps_default.yaml +++ b/moorpy/MoorProps_default.yaml @@ -78,7 +78,9 @@ lineProps: mass_d2 : 5293 # linear mass density per diameter^2 [kg/m/m^2] dvol_dnom : 1.18 # volume-equivalent diameter per nominal diameter [-] (assumes 4,875.5 kg/m^3 material density) MBL_d2 : 1022e6 # minimum breaking load per diameter^2 [N/m^2] - EA_d2 : 97.1e9 # stiffness per diameter^2 [N/m^2] + EA_d2 : 97.1e9 # stiffness per diameter^2 [N/m^2] + Cd : 1.021 # drag coefficient (transverse) based on DNV-OS-E301 adjusted for volumetric diameter; longitudinal (Cd_ax) is neglected + cost_MBL : 1.2e-05 # cost per N of MBL polyester : # polyester synthetic rope mass_d2 : 679 # linear mass density per diameter^2 [kg/m/m^2] @@ -116,6 +118,7 @@ lineProps: Cd : 1.988 # drag coefficient based on DNV-OS-E301 adjusted for use with volumetric diameter Ca : 1.1 # added mass coefficient based on Bureau Veritas 493-NR_2021-07 Ca_ax : 0.15 # axial added mass coefficient based on Bureau Veritas 493-NR_2021-07 + cost_MBL : 1.4e-04 # cost per N of MBL [$/m/N]