167 lines
4.0 KiB
C++
167 lines
4.0 KiB
C++
// DecompressBoardCalcDlg.cpp : implementation file
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//
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#include "stdafx.h"
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#include "DecompressBoardCalcDlg.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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/////////////////////////////////////////////////////////////////////////////
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// CDecompressBoardCalcDlg dialog
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void DecompressBoardCalc()
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{
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CTemporaryResourceOverride vTemp;
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CDecompressBoardCalcDlg dlg;
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dlg.DoModal();
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}
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CDecompressBoardCalcDlg::CDecompressBoardCalcDlg(CWnd* pParent /*=NULL*/)
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: CDialog(CDecompressBoardCalcDlg::IDD, pParent)
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{
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//{{AFX_DATA_INIT(CDecompressBoardCalcDlg)
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m_bChange = FALSE;
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m_csD1 = _T("150");
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m_csD2 = _T("150");
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m_csDn = _T("");
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m_csPress = _T("10");
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m_nQ = 25;
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m_iUnit = 0;
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m_iWant = 0;
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//}}AFX_DATA_INIT
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}
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void CDecompressBoardCalcDlg::DoDataExchange(CDataExchange* pDX)
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{
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CDialog::DoDataExchange(pDX);
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//{{AFX_DATA_MAP(CDecompressBoardCalcDlg)
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DDX_Check(pDX, IDC_CHECK_CHANGE, m_bChange);
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DDX_CBString(pDX, IDC_COMBO_D1, m_csD1);
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DDX_CBString(pDX, IDC_COMBO_D2, m_csD2);
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DDX_Text(pDX, IDC_EDIT_DN, m_csDn);
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DDX_Text(pDX, IDC_EDIT_PRESS, m_csPress);
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DDX_Text(pDX, IDC_EDIT_Q, m_nQ);
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DDX_Radio(pDX, IDC_RADIO_UNIT1, m_iUnit);
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DDX_Radio(pDX, IDC_RADIO_WANT_DN, m_iWant);
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//}}AFX_DATA_MAP
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}
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BEGIN_MESSAGE_MAP(CDecompressBoardCalcDlg, CDialog)
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//{{AFX_MSG_MAP(CDecompressBoardCalcDlg)
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ON_BN_CLICKED(IDC_CHECK_CHANGE, OnCheckChange)
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ON_BN_CLICKED(IDC_RADIO_WANT_DN, OnRadioWantDn)
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ON_BN_CLICKED(IDC_RADIO_WANT_PRESS, OnRadioWantPress)
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//}}AFX_MSG_MAP
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END_MESSAGE_MAP()
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/////////////////////////////////////////////////////////////////////////////
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// CDecompressBoardCalcDlg message handlers
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BOOL CDecompressBoardCalcDlg::OnInitDialog()
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{
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CDialog::OnInitDialog();
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CWnd *pWnd = GetDlgItem(IDC_COMBO_D2);
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pWnd->EnableWindow(FALSE);
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OnRadioWantDn();
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return TRUE; // return TRUE unless you set the focus to a control
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// EXCEPTION: OCX Property Pages should return FALSE
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}
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void CDecompressBoardCalcDlg::OnOK()
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{
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UpdateData();
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double v(0), nBackDn(0), nFrontDn(0), nQ(0), nTmp(0)/*ξ*/, nDn(0);
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if(m_bChange)
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nBackDn = _tstof(m_csD2)/1000;
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else
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nBackDn = _tstof(m_csD1)/1000;
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nFrontDn = _tstof(m_csD1);
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if(m_iUnit == 0)
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nQ = m_nQ/1000;
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else
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nQ = m_nQ / 3600;
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v = nQ / (0.25*PI*nBackDn*nBackDn); //流速m/s
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nDn = _tstof(m_csDn);
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if(m_iWant == 0){
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// H = 10*ξ×v^2/2*g
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double nH = _tstof(m_csPress); //得到水流通过孔板的水头损失 把mH2O转换为kPa
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nTmp = nH*2*9.8/v/v; //得到ξ
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nTmp = sqrt(nTmp) + 1;
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nTmp = nTmp / 1.75;
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//解一元二次方程 ax2+bx+c=0 x=(-b+-sqrt(b^2-4ac))/2a
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double a(0), b(0), c(0), x1(0), x2(0);
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a = -nTmp;
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b = 1.175*nTmp + 1;
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c = -1.1;
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x1 = (-b+sqrt(b*b-4*a*c))/2/a;
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x2 = (-b-sqrt(b*b-4*a*c))/2/a;
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x1 = sqrt(nFrontDn*nFrontDn*x1);
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x2 = sqrt(nFrontDn*nFrontDn*x2);
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if(x1 > 0 && x1 < nFrontDn) //2个解，取DN小于管径的
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m_csDn.Format(_T("%.2f"), x1);
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else
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m_csDn.Format(_T("%.2f"), x2);
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}
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else{
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double n(0), n2(0);
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n = nFrontDn*nFrontDn/(nDn*nDn);
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n2 = (nDn*nDn)/(nFrontDn*nFrontDn);
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nTmp = (1.75*n*(1.1-n2)/(1.175-n2) -1);
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nTmp = nTmp*nTmp;
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double nH = 10*nTmp*v*v/2/9.8;
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nH = nH /9.8;
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m_csPress.Format(_T("%.2f"), nH);
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}
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UpdateData(FALSE);
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}
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void CDecompressBoardCalcDlg::OnCheckChange()
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{
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UpdateData();
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CWnd *pWnd = GetDlgItem(IDC_COMBO_D2);
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if(m_bChange)
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pWnd->EnableWindow(TRUE);
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else
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pWnd->EnableWindow(FALSE);
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}
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void CDecompressBoardCalcDlg::OnRadioWantDn()
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{
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UpdateData();
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CWnd *pWnd1 = GetDlgItem(IDC_EDIT_PRESS);
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CWnd *pWnd2 = GetDlgItem(IDC_EDIT_DN);
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if(m_iWant == 0){
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pWnd1->EnableWindow(TRUE);
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pWnd2->EnableWindow(FALSE);
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}
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else{
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pWnd1->EnableWindow(FALSE);
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pWnd2->EnableWindow(TRUE);
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}
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}
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void CDecompressBoardCalcDlg::OnRadioWantPress()
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{
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UpdateData();
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CWnd *pWnd1 = GetDlgItem(IDC_EDIT_PRESS);
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CWnd *pWnd2 = GetDlgItem(IDC_EDIT_DN);
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if(m_iWant == 0){
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pWnd1->EnableWindow(TRUE);
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pWnd2->EnableWindow(FALSE);
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}
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else{
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pWnd1->EnableWindow(FALSE);
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pWnd2->EnableWindow(TRUE);
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}
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}
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