transport velocity correction

基类

模板TransportVelocityCorrection<Base, DataDelegationType, KernelCorrectionType, ParticleScope>。继承于LocalDynamics+ DataDelegationType。

Inner特化：对同一fluid body内部邻域做修正

模板TransportVelocityCorrection<Inner<ResolutionType, LimiterType>, CommonControlTypes...>。继承基类（固定用DataDelegateInner）。

• using TransportVelocityCorrectionInner=TransportVelocityCorrection<Inner<SingleResolution, LimiterType>, NoKernelCorrection, ParticleScope>;

Contact特化：接触边界 wall，只需要 wall 的体积度量

模板TransportVelocityCorrection<Contact<Boundary>, CommonControlTypes...>。从每个接触body取wall_Vol_（"VolumetricMeasure"）并累加对kernel_gradient_integral_的贡献。

Contact 特化 2：接触“其他相/其他流体体”，每个接触体有自己的 kernel correction

模板TransportVelocityCorrection<Contact<>, KernelCorrectionType, ...>。为每个contact body创建contact_kernel_corrections_与 contact_Vol_，用于多相/多流体间的TVC修正项。

复合类型

别名	实质	关系	ResolutionType	LimiterType	KernelCorrectionType	ParticleScope
BaseTransportVelocityCorrectionComplex	ComplexInteraction<TransportVelocityCorrection<Inner<ResolutionType, LimiterType>, Contact<Boundary>>, CommonControlTypes...>	Inner<...>, Contact<Boundary>	?	?	?	?
TransportVelocityCorrectionComplex	BaseTransportVelocityCorrectionComplex<SingleResolution, NoLimiter, NoKernelCorrection, ParticleScope>	Inner<...>, Contact<Boundary>	SingleResolution	NoLimiter	NoKernelCorrection	?
TransportVelocityCorrectionCorrectedComplex	BaseTransportVelocityCorrectionComplex<SingleResolution, NoLimiter, LinearGradientCorrection, ParticleScope>	Inner<...>, Contact<Boundary>	SingleResolution	NoLimiter	LinearGradientCorrection	?
TransportVelocityCorrectionCorrectedForOpenBoundaryFlowComplex	BaseTransportVelocityCorrectionComplex<SingleResolution, NoLimiter, LinearGradientCorrectionWithBulkScope, ParticleScope>	Inner<...>, Contact<Boundary>	SingleResolution	NoLimiter	LinearGradientCorrectionWithBulkScope	?
TransportVelocityLimitedCorrectionCorrectedForOpenBoundaryFlowComplex	BaseTransportVelocityCorrectionComplex<SingleResolution, TruncatedLinear, LinearGradientCorrectionWithBulkScope, ParticleScope>	Inner<...>, Contact<Boundary>	SingleResolution	TruncatedLinear	LinearGradientCorrectionWithBulkScope	?
TransportVelocityLimitedCorrectionComplex	BaseTransportVelocityCorrectionComplex<SingleResolution, TruncatedLinear, NoKernelCorrection, ParticleScope>	Inner<...>, Contact<Boundary>	SingleResolution	TruncatedLinear	NoKernelCorrection	?
TransportVelocityLimitedCorrectionCorrectedComplex	BaseTransportVelocityCorrectionComplex<SingleResolution, TruncatedLinear, LinearGradientCorrection, ParticleScope>	Inner<...>, Contact<Boundary>	SingleResolution	TruncatedLinear	LinearGradientCorrection	?
TransportVelocityCorrectionComplexAdaptive	BaseTransportVelocityCorrectionComplex<AdaptiveResolution, NoLimiter, NoKernelCorrection, ParticleScope>	Inner<...>, Contact<Boundary>	AdaptiveResolution	NoLimiter	NoKernelCorrection	?
BaseMultiPhaseTransportVelocityCorrectionComplex	ComplexInteraction<TransportVelocityCorrection<Inner<ResolutionType, NoLimiter>, Contact<>, Contact<Boundary>>, CommonControlTypes...>	Inner<...>, Contact<>, Contact<Boundary>	?	NoLimiter	?	?
MultiPhaseTransportVelocityCorrectionComplex	BaseMultiPhaseTransportVelocityCorrectionComplex<SingleResolution, NoKernelCorrection, ParticleScope>	Inner<...>, Contact<>, Contact<Boundary>	SingleResolution	NoLimiter	NoKernelCorrection	?

四类“控制维度”：决定变体适用范围

粒子范围ParticleScope

决定哪些粒子参与修正（“适用范围”最直接的开关）。定义在particle_functors.h。

• AllParticles：全体粒子都修正

• BulkParticles：IndicatedParticles<0>，只修正Indicator==0的“体内/主体”粒子（常用于排除buffer/open boundary粒子）

• IndicatedParticles<k> / NotIndicatedParticles<k>：按Indicator筛选。代码里所有 interaction/update 都先判断 within_scope_(index_i)，不在范围内就跳过

核梯度修正KernelCorrectionType

决定内/接触项里用什么“核修正矩阵/系数”。定义在particle_functors.h。

• NoKernelCorrection：恒为 1（不做核修正）

• LinearGradientCorrection：返回B_[i]（"LinearGradientCorrectionMatrix"）

• LinearGradientCorrectionWithBulkScope：关键用于open boundary/buffer 场景：在operator()(j,i)中，若j不属于bulk，则用B_[i]替代B_[j]，避免边界/缓冲粒子带来的不稳定核修正传播到主体

限制修正幅度LimiterType

更稳，但更“保守”。定义在common_functors.h。

• NoLimiter：不限制（返回 1）

• TruncatedLinear：根据measure（这里是kernel_gradient_integral的平方范数）给一个截断线性比例，抑制过大位移修正

分辨率ResolutionType

• SingleResolution: $h$比例恒为 1

• AdaptiveResolution: 比例来自粒子变量